Q:

What is the SI unit of Charge?

A) Coulomb	B) Amperes
C) Watts	D) Joules

Answer & Explanation Answer: A) Coulomb

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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:

What is the upward force exerted by water called?

A) Density	B) Buoyant force
C) Gravitation	D) Friction

Answer & Explanation Answer: B) Buoyant force

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Q:

Blocking in experimental design is useful because it

A) keeps the experimenter from knowing which subjects are in the treatment group.	B) prevents response bias from entering into the experiment.
C) gives the quarterback enough time to throw the ball.	D) controls for multiple variables in an experiment.

Answer & Explanation Answer: D) controls for multiple variables in an experiment.

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Q:

One step in the production of hydroelectric power involves _____.

A) falling water that turns a turbine	B) electric current flowing across a dam
C) hot water from under the ground	D) tides that pour through a barrier dam

Answer & Explanation Answer: A) falling water that turns a turbine

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Q:

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as $342 {ms}^{- 1}$ ?

A) 513 m	B) 644 m
C) 342 m	D) 171 m

Answer & Explanation Answer: A) 513 m

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Q:

Government intervention in a modern economy is useful because

A) the needs and wants of modern society are always met by the market place	B) the market place has many incentives to create public work such as parks and library’s
C) governments are more able to meet some needs and wants of modern society in a way that ensures that all members of society can participate	D) the market place powers all its own laws

Answer & Explanation Answer: C) governments are more able to meet some needs and wants of modern society in a way that ensures that all members of society can participate

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Q:

According to Article 80 of Indian Constitution, Rajya Sabha can have a maximum strength of 250 members. Out of these 250 members how many are representatives of States and Union Territories?

A) 230	B) 236
C) 238	D) 242

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