Q: The phenomenon involved in propagation of light waves throuhg optical fibres is :

A: Dispersion of light

B: Scattering of light

C: Total internal reflection of light

D: Refraction of light



Correct Option: C  [ Total internal reflection of light ]

Remark:


Q: Which of the following is a vector?

A: Mass

B: Volume

C: Speed

D: Velocity



Correct Option: D  [ Velocity ]

Remark:


Q: Man first landed on the surface of the Moon in :

A: 1967

B: 1968

C: 1969

D: 1970



Correct Option: C  [ 1969 ]

Remark:


Q: What is common in AIDS, hepatitis and typhoid fever ?

A: All are bacterial disease

B: All are water borne diseases

C: All are viral disease

D: All are spread by human beings



Correct Option: D  [ All are spread by human beings ]

Remark:


Q: According to ISRO, Chandrayaan-2 moon mission will explore which area of the moon ?

A: Moon North Pole

B: Moon South Pole

C: Moon North-West part

D: Unexplored part of the Moon



Correct Option: B  [ Moon South Pole ]

Remark:


Q: Who discovered Lysergic acid diethylamide (LSD)

A: Linus Pauling

B: Alexander Fleming

C: Albert Hofmann

D: None of these



Correct Option: C  [ Albert Hofmann ]

Remark:
A Swiss scientist.


Q: Glaciers always melt first at the:

A: top surface

B: sides

C: bottom

D: middle surface



Correct Option: C  [ bottom ]

Remark:


Q: Which one of the following allows sound waves to travel comparatively faster at 0°C ?

A: Water

B: Air

C: Ice

D: Iron



Correct Option: D  [ Iron ]

Remark:


Q: India first atomic device was exploded in 1974 at:

A: Bikaner

B: Barmed

C: Pokhran

D: Jaisalmer



Correct Option: C  [ Pokhran ]

Remark:
Pokhran is a city in Rajasthan


Q: How much blood does a man have in his body?

A: 4 %

B: 10 %

C: 7 %

D: None of these



Correct Option: C  [ 7 % ]

Remark:
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