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 Physics Questions

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Q:

Find the current (in A) when a charge of 1200C flows in 6 seconds.

A) 7200 B) 200
C) 100 D) 3600
 
Answer & Explanation Answer: B) 200

Explanation:
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Q:

The group of solar cells joined together in a definite pattern is called a

A) Battery B) Solar Heater
C) Solar cooker D) Solar cell panel
 
Answer & Explanation Answer: D) Solar cell panel

Explanation:
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Q:

Time period of a seconds pendulum is

A) 2 seconds B) 4 seconds
C) 1 seconds D) 0 seconds
 
Answer & Explanation Answer: A) 2 seconds

Explanation:

A seconds pendulum is a pendulum whose period is precisely two seconds i.e, one second for a swing in one direction and one second for the return swing.

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Q:

The taper on the lathe spindle is

A) 1 in 10 B) 1 in 20
C) 1 in 15 D) 1 in 25
 
Answer & Explanation Answer: B) 1 in 20

Explanation:
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Q:

Which of these instruments is used to measure the wind speed?

A) Anemometer B) Inclinometer
C) Fathometer D) Calorimeter
 
Answer & Explanation Answer: A) Anemometer

Explanation:

Anemometer is the instrument that is used for measuring the speed of wind or any gas currents.

Which_of_these_instruments_is_used_to_measure_the_wind_speed1560165843.jpg image

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Q:

Acceleration is the rate of change of

A) Speed B) Velocity
C) Jerk D) Jounce
 
Answer & Explanation Answer: B) Velocity

Explanation:

The rate of change of velocity is called as Acceleration.

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Q:

When a barometer is rising air pressure is

A) increasing B) decreasing
C) constant D) zero
 
Answer & Explanation Answer: A) increasing

Explanation:

The device which is used to measure air pressure is called as barometer. If the barometer reading is rising, it indicates that the air pressure is increasing and if the reading is falling the air pressure is decreaing.

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Q:

Which is a correct way to measure wavelength?

A) Nearest peak to peak B) Nearest peak to nearest trough
C) Nearest trough to peak D) None of the above
 
Answer & Explanation Answer: A) Nearest peak to peak

Explanation:

Wavelength of a wave can be measured with the distance between two nearest crest and crest or nearest troughs. It is measured as armstrong units.

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