Practice MCQ Questions and answers on Physics-GK Page-8 section-1

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12 Section 13 Section 14 Section 15

71.
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?

I.Diffusion

II.Refraction

III.Internal reflection

A. I, II and III

B. I and II

C. II and III

D. I and III

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72.
Natural radioactivity was discovered by

A. Marie Curie

B. Ernest Rutherfor

C. Henri Becquerel

D. Enrico Fermi

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73.
Planets are

A. luminous heavenly bodies revolving around a star

B. non-luminous heavenly bodies

C. luminous heavenly bodies that twinkle

D. luminous heavenly bodies that do not twinkle

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74.
One nanometer is equal to

A. 10^-6m

B. 10^-8m

C. 10^-9m

D. 10^-5m

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75.
Mica is used in electrical appliances such as electric iron because mica is

A. a good conductor of heat but a bad conductor of electricity

B. a bad conductor of heat but a good conductor of electricity

C. a good conductor of heat as well as electricity

D. a bad conductor of heat as well as electricity

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76.
It is easier to roll a barrel full of coal tar than to pull it because

A. the full weight of the barrel comes into play when it is pulled

B. the rolling friction is much less than the sliding friction

C. more surface area of the barrel is in contact with the road when it is pulled

D. coal tar is a liquid and it flows in the barrel when it is rolled

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77.
Minimum number of unequal vectors which can give zero resultant are

A. two

B. three

C. four

D. more than four

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78.
Intensity of sound has

A. an object existence

B. a subject existence

C. no existence

D. both subjective and objective existence

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79.
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

A. east

B. west

C. northeast

D. southeast

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80.
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

A. 1200 m

B. 0.33 km

C. 3.33 km

D. 33 km

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Practice MCQ Questions and answers on Physics-GK

71. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection

Answer & Solution

72. Natural radioactivity was discovered by

Answer & Solution

73. Planets are

Answer & Solution

74. One nanometer is equal to

Answer & Solution

75. Mica is used in electrical appliances such as electric iron because mica is

Answer & Solution

76. It is easier to roll a barrel full of coal tar than to pull it because

Answer & Solution

77. Minimum number of unequal vectors which can give zero resultant are

Answer & Solution

78. Intensity of sound has

Answer & Solution

79. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

Answer & Solution

80. An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

Answer & Solution

Read More Section(Physics)

71.
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?

I.Diffusion

II.Refraction

III.Internal reflection

72.
Natural radioactivity was discovered by

73.
Planets are

74.
One nanometer is equal to

75.
Mica is used in electrical appliances such as electric iron because mica is

76.
It is easier to roll a barrel full of coal tar than to pull it because

77.
Minimum number of unequal vectors which can give zero resultant are

78.
Intensity of sound has

79.
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

80.
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is