Which of the following forces are called fundamental forces: a) Gravitational force b) Frictional force c) Electrostatic force d) Elastic force e) Nuclear forces f) Force due to surface tension
b,d.f
a, b, d, f
a,c,e
a, b, c, d,e, f
A
a, b, d, f
B
a, b, c, d,e, f
C
b,d.f
D
a,c,e
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Solution
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There are four fundamental forces: Strong interaction Electromagnetic force Weak force Gravitational force. Here a,e and c include three of them.
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