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Physics

Physics
Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds

11
5.5
0.5
1

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Physics
When heated from 0 to 100oC volume of a given mass of water will :

Increase and then will decrease
Increase gradually
Decrease and then will increase
Decrease gradually

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Physics
A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become

7C
C
C/7
14C

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Physics
The washing machine works on the principle of

Diffusion
Centrifugation
Reverse osmosis
Dialysis

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Physics
The source of the Sun's energy is the process of

Nuclear fission
Thermionic emission
Photoelectric emission
Nuclear fusion

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Physics
A water tank appears shallower when it is viewed from top due to

Reflection
Total internal reflection
Refraction
Rectilinear propagation of light

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