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Q:

Which of the following is used to detect current in a circuit?

A) Galvanometer B) Anemometer
C) Barometer D) Lactometer
 
Answer & Explanation Answer: A) Galvanometer

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Q:

The SI unit of electric charge is

A) ohm B) volt
C) ampere D) coulomb
 
Answer & Explanation Answer: D) coulomb

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Q:

For what is Radiocarbon dating technique used?

A) To estimate soil contamination B) To estimate the amount of water in fossils
C) To estimate the age of fossils D) To estimate the quality of soil
 
Answer & Explanation Answer: C) To estimate the age of fossils

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Q:

A body of mass 6 kg accelerates from 6 m/s to 18 m/s in 3 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

 

A) 48 B) 60
C) 24 D) 96
 
Answer & Explanation Answer: C) 24

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Q:

Which of the following instruments is used to measure electric current?

A) Rheostat B) Voltmeter
C) Ammeter D) Galvanometer
 
Answer & Explanation Answer: C) Ammeter

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Q:

One Watt = ?

A) 1 Joule/sec B) 1 erg/sec
C) 1 Pascal/sec D) 1 m/s
 
Answer & Explanation Answer: A) 1 Joule/sec

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Q:

What is not true with CT Scan?

A) Combines many X-ray images B) Scanning is often painful
C) Generates 3-D cross-sectional views D) Identifies normal and abnormal structures
 
Answer & Explanation Answer: B) Scanning is often painful

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Q:

The repeated reflection that results in persistence of sound is called

A) echo B) reflection
C) rarefaction D) reverberation
 
Answer & Explanation Answer: D) reverberation

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