General Knowledge on Physics

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
101. Which one of the following phenomena is associated with the fire files giving cold light in night ? A. Fluorescence B. phosphorescence C. Chemiluminescence D. Effervescence Check Answer \| Discussion 102. Which one among the following rays has minimum wavelength? A. Cosmic rays B. Gamma rays C. X-rays D. Ultra-violet rays Check Answer \| Discussion 103. Stars are twinkling due to A. diffraction B. refraction C. scattering D. reflection Check Answer \| Discussion 104. If we move from equator to pole, the value of g A. increases B. decreases C. remains same D. first increases then decreases Check Answer \| Discussion 105. Which one of the following will have the maximum cohesive force? A. Solid B. Fluid C. Gas D. Liquid Check Answer \| Discussion 106. A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behave like a A. converging lens B. diverging lens C. plano-converging lens D. plano-diverging lens Check Answer \| Discussion 107. The best and the poorest conductors of heat are respectively A. silver (Ag) and lead (pb) B. copper (Cu) and almunium (A) C. silver (Ag) and gold (Au) D. copper (Cu) and gold (Au) Check Answer \| Discussion 108. The silvering in thermos flasks is done to avoid heat transfer by A. Convection B. Conduction C. Radiation D. Both 'a' and 'b' Check Answer \| Discussion 109. A jet engine works on the principle of conservation of A. liner momentum B. angular momentum C. energy D. mass Check Answer \| Discussion 110. The loudness of sound is related to A. its frequency B. its amplitude C. its speed D. its pitch Check Answer \| Discussion
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General Knowledge on Physics

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