Q:

Sensitivity of potentiometer can be increased by

A) increasing the e.m.f. of the cell	B) increasing the length of the potentiometer
C) decreasing the length of the potentiometer wire	D) none of these

Answer & Explanation Answer: B) increasing the length of the potentiometer

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Q:

A lens has a power +2.0 D. The type of lens and its focal length will be

A) Concave, -0.5 m	B) Convex, 0.5 m
C) Concave, 0.5 m	D) Convex, -0.5 m

Answer & Explanation Answer: B) Convex, 0.5 m

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Q:

What does the kinetic energy (KE) of a moving body depend upon?

A) Mass & its position	B) Weight & its position
C) Mass & acceleration	D) Mass & velocity

Answer & Explanation Answer: D) Mass & velocity

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Q:

The Magdalena River is one of the largest basins of South America. Through which country does it flow?

A) Brazil	B) Columbia
C) chile	D) Argentina

Answer & Explanation Answer: D) Argentina

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Q:

Who took charge as the Chief Minister of Goa after the 2017 elections?

A) Bharat Vir Wanchoo	B) Manohar Parrikar
C) Churchill Alemao	D) Dayanand Narvekar

Answer & Explanation Answer: B) Manohar Parrikar

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Q:

What was the name of the operation launched by India to help Bangladesh in solving with Rohingya crisis?

A) Operation Saksham	B) Operation Manavata
C) Operation Khushhali	D) Operation Insaniyat

Answer & Explanation Answer: D) Operation Insaniyat

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Q:

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

A) MR	B) M/R2
C) M2/R	D) M/R

Answer & Explanation Answer: B) M/R2

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Q:

The diameter of the reflecting surface of a spherical mirror is called a/an

A) principal axis	B) aperture
C) focus	D) pole

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