IIT JEE Practice Question and Answer
8Q: Two men A and B start from place X walking at 4 ½ kmph and 5 ¾ kmph respectively. How many km apart they are at the end of 3 ½ hours if they are walking in the same direction ? 4010 05b5cc6eee4d2b4197774ef11
5b5cc6eee4d2b4197774ef11- 12 9/7 kmfalse
- 23 7/5 kmfalse
- 31 3/4 kmfalse
- 44 3/8 kmtrue
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Answer : 4. "4 3/8 km"
Explanation :
Answer: D) 4 3/8 km Explanation: Relative Speed = 5 ¾ - 4 ½ = 1 ¼ Time = 3 ½ h. Distance = 5/4 x 7/2 = 35/8 = 4 3/8 km.
Q: Which organisation among the following gave a slogan "Hyderabad for Hyderabadies" ? 4007 05b5cc6c0e4d2b4197774dad5
5b5cc6c0e4d2b4197774dad5- 1Ittehadul Musleemeenfalse
- 2Jameeyat Riya Mame Nizamtrue
- 3Deccan-e-Shabbirfalse
- 4Jamia Islamiafalse
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Answer : 2. "Jameeyat Riya Mame Nizam"
Explanation :
Answer: B) Jameeyat Riya Mame Nizam Explanation:
Q: Sound waves cannot travel in 4002 05b5cc64ae4d2b4197774bc1b
5b5cc64ae4d2b4197774bc1b- 1Vacuumtrue
- 2Waterfalse
- 3Glassfalse
- 4Hydrogen gasfalse
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Answer : 1. "Vacuum"
Explanation :
Answer: A) Vacuum Explanation: A Sound wave needs a medium for propogation. Hence, Sound cannot travel through a vacuum. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.
Q: The oldest type of energy known to man is _____? 3998 05b5cc6bfe4d2b4197774da1a
5b5cc6bfe4d2b4197774da1a- 1Geothermal Energytrue
- 2Solar Powerfalse
- 3Wind Powerfalse
- 4Tidal Powerfalse
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Answer : 1. "Geothermal Energy"
Explanation :
Answer: A) Geothermal Energy Explanation: Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth's internal heat.
Q: Blotting paper absorbs ink due to 3995 05b5cc666e4d2b4197774bef8
5b5cc666e4d2b4197774bef8- 1Capillary action phenomenontrue
- 2Diffusion of ink through the blottingfalse
- 3Siphon actionfalse
- 4Viscosity of inkfalse
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Answer : 1. "Capillary action phenomenon"
Explanation :
Answer: A) Capillary action phenomenon Explanation: Blotting paper absorbs ink by the process of capillary action. The capillary action is based on the property of surface tension of liquid. All unsized paper will absorb water. Blotting paper is not sized and made bulkier to provide capillary action for faster absorption of liquid. Blotting paper has also been sold as a cosmetic to aid in the removal of skin oils and makeup.
Q: Which of the following memories needs refresh ? 3993 65b5cc6c0e4d2b4197774db0a
5b5cc6c0e4d2b4197774db0a- 1DRAMtrue
- 2ROMfalse
- 3SRAMfalse
- 4All of the abovefalse
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Answer : 1. "DRAM"
Explanation :
Answer: A) DRAM Explanation:
Q: Guwahati High Court is the Judicature of 3986 05b5cc6b7e4d2b4197774d615
5b5cc6b7e4d2b4197774d615- 1Arunachal Pradeshfalse
- 2Nagalandfalse
- 3Assamfalse
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation:
Q: Which is the World's Fastest SUPERCOMPUTER and to which country it belongs ? 3981 25b5cc6c5e4d2b4197774dd5f
5b5cc6c5e4d2b4197774dd5f- 1JAGUAR --- ENGLANDfalse
- 2PARAM YUVA 2 --- INDIAfalse
- 3CRAY-1 --- ENGLANDfalse
- 4TIANHE 2 --- CHINAtrue
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Answer : 4. "TIANHE 2 --- CHINA"
Explanation :
Answer: D) TIANHE 2 --- CHINA Explanation: