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

Explanation:

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Q:

A solar eclipse occurs when

A) moon comes in the middle of sun and earth	B) sun comes in the middle of moon and earth
C) earth comes in the middle of moon and sun	D) All of the above

Answer & Explanation Answer: A) moon comes in the middle of sun and earth

Explanation:

A solar eclipse happens when the moon gets in the way of the sun's light and casts its shadow on Earth. Solar eclipses happen when the New Moon comes between the Sun and Earth and blocks out the Sun's rays.

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Q:

An object of 5.0 kg is raised through a height of 2.0m. The work done in the process is

A) 49 J	B) 10 J
C) 19.6 J	D) 98 J

Answer & Explanation Answer: D) 98 J

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Q:

On 10 April 2017, Lok Sabha Passed the Motor Vehicles Act (Amendment) Bill, 2016. Under the new provisions, the compensation for death increased from Rs 25,000 to ______

A) Rs 2 lakh or more	B) Rs 5 lakh or more
C) Rs 10 lakh or more	D) Rs 15 lakh or more

Answer & Explanation Answer: A) Rs 2 lakh or more

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Q:

In August 2017, RBI announced to transfer approximately how much amount for the Financial Year 2016-17 as a dividend to the Government?

A) Rs 30,659 crore	B) Rs 50,650 crore
C) Rs 60,659 crore	D) Rs 70,659 crore

Answer & Explanation Answer: A) Rs 30,659 crore

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Q:

_________ says that the marginal product of a factor input initially rises with its employment level. But after reaching a certain level of employment, it starts falling.

A) Law of diminishing marginal product	B) Law of variable proportions
C) The Short Run	D) The Long Run

Answer & Explanation Answer: B) Law of variable proportions

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Q:

A growing country is one with ___________ there.

A) rising GNP at constant prices	B) rising GNP at current prices
C) constant GNP at constant prices	D) No option is correct

Answer & Explanation Answer: A) rising GNP at constant prices

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Q:

What is the valency of magnesium?

A) 1	B) 2
C) 3	D) 4

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