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Physics

Physics
Sound waves cannot travel through

Vacuum
Solid
Gas
Liquid

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Physics
Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is :

1.2
1.5
2
1

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Physics
1 Joule is Equal to

10^3 ergs
10^6 ergs
10^5 ergs
10^7 ergs

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

1
5.5
11
0.5

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Physics
The rate of flow of electric charge is measured in

Ampere-coulomb
Ampere
Coulomb
Ampere/coulomb

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Physics
Who was the first scientist to discover Electrons?

J.C. Bose
Isaac Newton
Albert Einstein
J.J Thompson

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