General Knowledge - Physics

Exercise :: Physics - Section 1

  • Physics - Section 1
61. 

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: Option C

Explanation:

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62. 

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: Option A

Explanation:

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63. 

One watt-hour is equivalent to

A. 6.3 x 103 J
B. 6.3 x 10-7 J
C. 3.6 x 103 J
D. 3.6 x 10-3 J

Answer: Option C

Explanation:

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64. 

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: Option A

Explanation:

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65. 

In which of the following industries is mica as a raw material?

A. Cement
B. Glass and Pottery
C. Iron and Steel
D. Electrical

Answer: Option D

Explanation:

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66. 

Radiocarbon dating technique is used to estimate the age of

A. rocks
B. monuments
C. soil
D. fossils

Answer: Option D

Explanation:

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