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Physics

Physics
The magnitude of buoyant force depends on the ________ of the fluid.

Density
Mass
Temperature
Volume

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Physics
Acceleration is the rate of change of

Jerk
Speed
Velocity
Jounce

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Physics
An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's

First law
Third law
Fourth law
Second law

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Physics
An oil drop spreads over water because

Oil is lighter than water
water has a higher surface tension
Oil does not mix with water
Oil is more viscous

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Physics
For which of the following substances, the resistance decreases with increase in temperature?

Pure silicon
Platinum
Copper
Nichrome

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Physics
The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?

0.41666666666667
24 A
8.5 A

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