Question

Ratio of gravitational force, electromagnetic force and nuclear force is * 1 point a)1:10²⁵:10³⁶ b) 1: 10³⁶:10³⁸ c) 10²⁵:10³⁶:10³⁸ d)1:10¹³:10²⁵​

Answer 1

Answer:

Correct option is

B

2.4×10

39

Here, for an electron and a proton

Electrostatic force, ∣F

e

∣=

4πε

0

1

r

2

e

2

Gravitational force, ∣F

g

∣=

r

2

Gm

e

m

p

∴

∣F

g

∣

∣F

e

∣

=

4πε

0

1

Gm

e

m

e

2

=

6.67×10

−11

×9×10

−31

×1.66×10

−27

9×10

9

×(1.6×10

−19

)

2

=2.4×10

39

Explanation:

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Answer 2

Given: Three type of forces are given gravitational force, electromagnetic force and nuclear force.

To find: We have to find the ratio between gravitational force, electromagnetic force and nuclear force.

Solution:

• Gravitational force is the force of attraction between two substance having mass and it is equal to $10^{-39}$.
• Nuclear force is the force of attraction between the particles of nucleus it is equal to $10^{-13}$.
• Electromagnetic force is the force of attraction between charged particles. It is equal to $10^{-2}$.

The ratio is-

${10}^{ - 39}: {10}^{ - 2} : {10}^{ - 13} \\ = 1: {10}^{37} : {10}^{26}$