IAS 2002 — Physics
Science Physics questions from IAS 2002.
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5 Physics Questions from 2002
Assertion (a): Artificial satellites are always launched from the earth in the eastward direction. Reason (R): The earth rotates from west to east and so the satellite attains the escape velocity.
Which one of the following statements is correct with reference to our solar system?
Assertion (A): An iron ball floats on mercy but gets immersed in water. Reason (R): The specific gravity of iron is more than that of mercury. Codes:
Consider the following natural phenomena: 1. Terrestrial heating 2. Reflection of light 3. Refraction of light 4. Diffraction of light Due to which of these phenomena is a mirage formed?
Consider the following statements: 1. Light of longer wavelength are scattered much more than the light of shorter wavelength. 2. The speed of visible light in water is 0.95 times the speed in vacuum. 3. Radio waves are produced by rapidly oscillating electrical currents. 4. To detect the over speeding vehicles, police use the Doppler effect of reflected short radio waves. Which of these statements are correct?