Q:

The least penetrating power ray is

A) Gamma rays	B) Beta rays
C) Alpha rays	D) None of the above

Answer & Explanation Answer: C) Alpha rays

Explanation:

The least penetrating power ray is Alpha rays.

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Q:

Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is

A) of variable refractive index	B) made up of slabs of different refractive indices
C) homogeneous and transparent	D) inhomogeneous and transparent

Answer & Explanation Answer: C) homogeneous and transparent

Explanation:

In vacuum and in homogeneous, transparent media, such as air, water, and glass, light moves in a straight line. When light encounters a boundary between two different transparent media, some light is reflected and some moves from the first into the second medium.

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Q:

Centrifugal force increases with

A) Temperature	B) Pressure
C) Acceleration	D) Humidity

Answer & Explanation Answer: C) Acceleration

Explanation:

Centrifugal force is the fictitious force that pulls out from the center on the body we feel while moving in the circular path. It increases with the rate of rotation of the axis i.e, acceleration of the body.

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Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40	B) 4000
C) 80	D) 2000

Answer & Explanation Answer: A) 40

Explanation:

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Q:

Who is India's next Ambassador to Peru?

A) M. Subbarayudu	B) Yashvardhan Kumar Sinha
C) Dr Rizal Sukma	D) Sandeep Chakravorty

Answer & Explanation Answer: A) M. Subbarayudu

Explanation:

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Q:

The mountain range which divides the North and the South India is

A) Himalayas	B) Western ghats
C) Vindhyas	D) Satpura

Answer & Explanation Answer: C) Vindhyas

Explanation:

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Q:

In which field Dhanwantri is given?

A) Music	B) Medicine
C) Sports	D) Military

Answer & Explanation Answer: B) Medicine

Explanation:

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

to chip on his shoulder

A) to have huge responsibilities on one's shoulders	B) uniform decorated with stars and medals
C) wearing your battle scars like medals	D) holding a grudge or grievance that readily provokes a fight

Answer & Explanation Answer: D) holding a grudge or grievance that readily provokes a fight

Explanation:

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