Practice Physics question set 5 - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) At what temperature are the reading of a Centigrade and Fahrenheit thermometer the same?
(a)
(b)
(c)
(d)
Q-2) When we see the sky from a plane in high altitude, then it seems
(a)
(b)
(c)
(d)
Q-3) Diffusion of light in the atmosphere takes place due to
(a)
(b)
(c)
(d)
Q-4) Consider the following statements: - Loudness or softness of a sound is determined by its amplitude.
- Two sounds of same loudness and pitch can be distinguished by quality.
- The speed of sound decreases on increasing the temperature.
Which of these statements is/are correct ?
(a)
(b)
(c)
(d)
Explanation:
The speed of sound is related with temperature of medium as v ∝√T.
Q-5) The sound travels fastest in
(a)
(b)
(c)
(d)
Q-6) At what point the Fahrenheit temperature is double of Centigrade temperature?
(a)
(b)
(c)
(d)
Q-7) The tolerable limit of noise for human being is around
(a)
(b)
(c)
(d)
Q-8) For reproducing sound, a CD (Compact Disc) audio player uses a
(a)
(b)
(c)
(d)
Q-9) When there is depletion of ozone in the stratosphere, the wavelength of radiation striking the Earth’s surface will be
(a)
(b)
(c)
(d)
Explanation:
Q-10) Decibel unit is used to measure
(a)
(b)
(c)
(d)