Question

the e/m value of proton is (a)less than e/m value of electron (b)equal to e/m value of proton (c)greater than e/m value of electron (d)all the above

Answer 1

les then e/m value of electron.

because the value of e is same for both electron and proton but the walue if m for proton is way mch higher then that of electron.therefore (a)

Answer 2

Answer:

Correct option is option (a)

Thus, the e/m value of proton is less than the e/m value of electron.

Explanation:

'e' is defined as the charge on particles while 'm' is defined as mass of particles.

For proton:

'e' = 1.6 × 10⁻¹⁹ C                          'm' = 1.67 × 10⁻²⁷ kg

Thus e/m ratio = 1.6 × 10⁻¹⁹ / 1.67 × 10⁻²⁷ = 10⁸

For electron:

'e' = 1.6 × 10⁻¹⁹ C                          'm' = 9.1 × 10⁻³¹ kg

Thus e/m ratio = 1.6 × 10⁻¹⁹ / 9.1 × 10⁻³¹ = 1.75 × 10¹¹

Therefore the e/m value of proton is less than the e/m value of electron.

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