Question :
A) time
B) distance
C) light
D) intensity of light
Answer : B
Light year is a unit of
A) time
B) distance
C) light
D) intensity of light
Answer : B
Description :
Related Questions - 1
Planets do not twinkle because
A) they emit light of a constant intensity
B) their distance from the earth does not change with time
C) they are very far away from the earth resulting in decrease in intensity of light
D) they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable
Related Questions - 2
Related Questions - 3
Radiocarbon is produced in the atmosphere as a result of
A) collision between fast neutrons and nitrogen nuclei present in the atmosphere
B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D) lightning discharge in atmosphere
Related Questions - 4
Of the following properties of a wave, the one that is independent of the other is its
A) amplitude
B) velocity
C) wavelength
D) frequency