1. The scientists released world’s smallest stop motion film called ‘A Boy and His Atom’ by
IBM scientists created A Boy and His Atom in 2013, the world's smallest stop-motion film, by moving individual atoms to create images.
2. NASA recently marks 10th anniversary of space shuttle disaster of
NASA marked the 10th anniversary of the Columbia space shuttle disaster in 2013. The shuttle disintegrated upon re-entry on February 1, 2003, killing all seven astronauts on board.
3. Curiosity Rover captured a flower like formation on the rocks of
NASA's Curiosity Rover captured a flower-like mineral formation on the surface of Mars in February 2022. The structure was formed by mineral deposits left behind by water.
4. Indian scientists have developed a new and cost-effective camera sensor that can capture clear images in low light without the need for a flash. This breakthrough was achieved by researchers from which institute?
IISc Bangalore researchers developed a cost-effective camera sensor using near-infrared imaging, capturing clear images in low light without a flash. This innovation benefits night vision, medical imaging, and surveillance applications efficiently.
5. Which spacecraft of NASA provided new view of Saturn and Earth?
NASA's Cassini spacecraft provided stunning new views of Saturn and Earth during its mission (1997–2017). It captured detailed images of Saturn's rings, moons, and even Earth as a tiny dot from Saturn's orbit.
6. First 100 percent ultrasound toothbrush of the world developed by the scientists of
Scientists from the UK developed the world's first 100% ultrasound toothbrush, which cleans teeth using ultrasonic waves without requiring traditional brushing. This innovation helps remove plaque and bacteria effectively.
7. Alcoholic beverages contain
Alcoholic beverages contain ethyl alcohol (ethanol), which is safe for human consumption in moderate amounts. Other alcohols like methyl alcohol (methanol) and butyl alcohol are toxic and not used in beverages.
8. The chief nitrogenous waste in humans is
Humans primarily excrete urea as the chief nitrogenous waste product. It is produced in the liver through the urea cycle and excreted via the kidneys in urine.
9. Which of the following is not a cereal?
Maize, Barley, and Rice are all cereals, which are grass species cultivated for their edible grains. Musary is not a recognized cereal crop.
10. Which of the following metals can display hydrogen from dilute acids?
Zinc can displace hydrogen from dilute acids like hydrochloric acid (HCl) because it is more reactive than hydrogen. The reaction produces zinc chloride (ZnCl₂) and hydrogen gas (H₂):
Zn+2HCl→ZnCl₂ +H₂↑
Silver, Gold, and Copper are less reactive than hydrogen and do not react with dilute acids to release hydrogen gas.
11. Turpentine oil is obtained from
Turpentine oil is obtained from the resin of pine trees through distillation. It is commonly used as a solvent, in paints, and for medicinal purposes.
12. Which of the following plants bears non-endospermic seed?
Groundnut and Pea have non-endospermic (exalbuminous) seeds because the embryo completely consumes the endosperm during development. The nutrients are stored in the cotyledons.
Mustard also has non-endospermic seeds.
Coconut has endospermic (albuminous) seeds, meaning the endosperm remains as a food reserve.
Thus, Pea is the best answer among the given options.
13. When an iron nail gets rusted, iron oxide is formed
When an iron nail rusts, it reacts with oxygen (O₂) and water (H₂O) from the environment to form hydrated iron oxide (Fe₂O₃·xH₂O), commonly known as rust.
This process adds oxygen and water molecules to the iron, causing an increase in the weight of the nail.
14. Oranges are rich sources of
Oranges are rich in Vitamin C, which helps boost immunity, improve skin health, and aid in iron absorption. They also contain Vitamin A, B-complex vitamins, and antioxidants, but they are low in proteins, fats, and carbohydrates compared to other food sources.
15. The stars twinkle in the night because
Stars appear to twinkle because their light passes through different layers of the Earth’s atmosphere, which have varying densities and temperatures. These variations change the refractive index of air, causing the light to bend irregularly. This phenomenon is called atmospheric refraction.
Since the atmosphere is constantly shifting, the light from stars changes direction frequently, making them appear to twinkle.
16. UK scientists discovered the deepest hydro-thermal vents in the world in
UK scientists discovered the deepest hydrothermal vents in the world in the Cayman Trough of the Caribbean Sea. These vents, located at a depth of about 5,000 meters (16,400 feet), were found during an expedition in 2010. They release superheated mineral-rich water and support unique deep-sea ecosystems.
17. INSAT-3D satellite placed successfully in Geosynchronous orbit launched on
INSAT-3D, an advanced weather satellite, was successfully launched on 26 July 2013 from French Guiana aboard an Ariane-5 rocket. It was placed in Geosynchronous Orbit to enhance meteorological observations, disaster warning, and search & rescue operations.
18. Which of the new sign language translator developed by Microsoft?
Kinect, developed by Microsoft, was originally designed for motion sensing in gaming but was later adapted for sign language translation. Researchers utilized Kinect’s depth-sensing cameras and machine learning algorithms to interpret sign language gestures into text or speech, improving accessibility for the hearing-impaired.
19. The oldest super predator living on earth discovered was the
Fossil evidence suggests that marine crocodiles were among the oldest super predators on Earth. These prehistoric crocodiles, like Machimosaurus, lived during the Jurassic and Cretaceous periods and were dominant marine predators. Their powerful jaws and aquatic adaptations made them formidable hunters in ancient seas.
20. Which country launched first ever deep UV laser device?
China launched the first-ever deep ultraviolet (UV) laser device, marking a significant advancement in semiconductor manufacturing, medical imaging, and environmental monitoring. Deep UV lasers operate at short wavelengths, allowing high-precision applications in microelectronics and photolithography.
21. Which of the following waves are used for telecommunication?
Microwaves are widely used in telecommunication, including mobile networks, satellite communication, and radar systems. They have shorter wavelengths than radio waves, allowing them to carry more data over long distances with minimal interference.
Other options:
X-rays → Used in medical imaging.
Ultraviolet rays → Used in sterilization and forensic analysis.
Infrared rays → Used in remote controls and thermal imaging.
22. ISRO’s 100th space mission completed by the launch of
ISRO's 100th space mission was completed with the successful launch of PSLV-C21 on September 9, 2012. The rocket carried SPOT-6 (a French earth observation satellite) and PROITERES (a Japanese microsatellite) from the Satish Dhawan Space Centre, Sriharikota.
23. On January 5, 2014 India launched which satellite?
On January 5, 2014, India successfully launched GSAT-14, a communication satellite, using the GSLV-D5 rocket from Sriharikota. This launch was significant as it marked the successful flight of the indigenous cryogenic engine, boosting India's self-reliance in satellite launches.
24. Study of life in outer space is
Exobiology, also known as astrobiology, is the study of life beyond Earth, including the possibility of extraterrestrial life and the conditions required for life to exist in space. It combines biology, astronomy, and planetary sciences to explore life in extreme environments and on other planets.
25. Inventor and founder of www is
Tim Berners-Lee, a British scientist, invented the World Wide Web (WWW) in 1989 while working at CERN. He developed the first web browser and server, enabling the modern internet. His contributions revolutionized global communication and information sharing.
26. HAL is related to manufacturing of
Hindustan Aeronautics Limited (HAL) is an Indian state-owned aerospace and defense company engaged in the design, development, and manufacturing of aircraft, helicopters, and avionics. It plays a crucial role in India's defense sector, producing fighter jets like Tejas and helicopters like Dhruv.
27. The instrument used for measuring depth of water table is known as
A piezometer is used to measure the depth of the water table and pore water pressure in soil, rocks, or groundwater systems. It is commonly used in hydrogeology, geotechnical engineering, and environmental studies.
Other options:
Evaporimeter → Measures the rate of evaporation of water.
Odometer → Measures distance traveled by a vehicle.
Lysimeter → Measures the amount of water percolating through soil.
28. NASA satellite data found freshwater losses during the past decade in
NASA satellite data from the Gravity Recovery and Climate Experiment (GRACE) mission revealed significant freshwater losses in the Middle East over the past decade. The study highlighted that regions like Turkey, Syria, Iraq, and Iran experienced severe water depletion due to drought, over-extraction of groundwater, and dam construction.
29. The first complete bionic man of the world unveiled at London’s Science Museum called
The world’s first complete bionic man, named Rex (short for "Robotic Exoskeleton"), was unveiled at London’s Science Museum in 2013. It was built using artificial organs, limbs, and synthetic blood, showcasing advancements in bionics and prosthetics.
30. Which one of the following subjects is not related to ‘Robot’?
Robotics primarily involves mechanics, cybernetics, and kinematics, which deal with motion, control, and automation.
Hydraulics, while used in some robotic applications (like robotic arms), is not a core subject related to robotics, as many modern robots rely more on electrical and mechanical systems rather than fluid-based control.
31. Vulcanisation is
Vulcanization is a chemical process in which rubber is heated with sulfur to improve its elasticity, strength, and durability. This process prevents rubber from becoming too sticky in heat or too brittle in cold temperatures.
Other options:
(B) Voltaic cells → Related to electricity generation, not rubber.
(C) Degrading polymers → Opposite of vulcanization; involves breaking down materials.
(D) Studying volcanoes → The correct term for that is "Volcanology"
32. India was affected by the cyber spying campaign called
Red October was a cyber-espionage campaign that targeted India and several other countries. It was discovered in 2013 by Kaspersky Lab. The malware was designed to steal classified information from government institutions, research centers, and diplomatic offices.
33. Who won Nobel Prize in physics in 2013?
François Englert and Peter W. Higgs won the 2013 Nobel Prize in Physics for their theoretical discovery of the Higgs mechanism, which explains how particles acquire mass. This discovery was confirmed by the Large Hadron Collider (LHC) at CERN in 2012.
34. What is the source of electrical energy in an artificial satellite?
Artificial satellites primarily use solar cells (solar panels) as their source of electrical energy. These convert sunlight into electricity to power the satellite's systems and recharge onboard batteries for use when the satellite is in Earth's shadow.
Other options:
(A) Thermopile → Converts heat to electricity but is not commonly used in satellites.
(B) Dynamo → Used in mechanical energy conversion but not practical for satellites.
(C) Mini nuclear reactor → Rarely used, except in deep-space missions where solar energy is insufficient.
35. In January, 2014, a gray whale species has been found in
In January 2014, fishermen discovered conjoined gray whale calves in Baja California, Mexico. The calves were thoracopagus twins, joined at the chest, with two heads and tail fins. They lived only a few hours. Scientists collected skin, muscle, and baleen samples for research. Gray whales migrate yearly from Alaska to Mexico.
36. Which is the largest 2-wheeler manufacturing company in the world?
Hero MotoCorp remains the world’s largest two-wheeler manufacturer by unit sales, selling 5.9 million two-wheelers in 2024.
Honda follows closely with 5.8 million sales. Hero's Haridwar plant is the largest globally. Known for Splendor, Passion, and Glamour, it has led the market for over 20 years.