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Question: A proton is accelerated through 50,000 V. Its energy will increase by...

A proton is accelerated through 50,000 V. Its energy will increase by

A

5000 eV

B

8×10−158 \times 10^{- 15}J

C

5000 J

D

50,000 J

Answer

8×10−158 \times 10^{- 15}J

Explanation

Solution

Kinetic energy K = Q.V

⇒ K = (+e) (50000 V)

= 50000 eV = 50000 × 1.6 × 10–19 J = 8 × 10–15 J