56.

Rainbow is due to
A. absorption of sunlight in minute water droplets B. diffusion of sunlight through water droplets
C. ionisation of water deposits D. refraction and reflection of sunlight by water droplets
Answer and Explanation
Answer:D
Explanation: No answer description available for this question.
57.

Stars which appear single to the naked eye but are double when seen through a telescope are
A. novas and supernovas B. binaries
C. asteroids D. quasars
Answer and Explanation
Answer:B
Explanation: No answer description available for this question.
58.

Solar eclipse will take place when
A. the sun is between the moon and the earth B. the earth is between the moon and the sun
C. the moon is between the sun and the earth D. the moon does not lie on the line joining the sun and the earth
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.
59.

Isotopes of an element contain
A. the same number of protons but different number of neutrons B. the same number of neutrons but different number of protons
C. equal number of protons and electrons D. equal number of nucleons
Answer and Explanation
Answer:A
Explanation: No answer description available for this question.
60.

Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
A. Scattering B. Diffraction
C. Interference D. Polarization
Answer and Explanation
Answer:A
Explanation: No answer description available for this question.