Work, Energy and Power-Elastic and Inelastic Collisions (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 2 of 2

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Question number: 1

» Work, Energy and Power » Elastic and Inelastic Collisions

Appeared in Year: 2011

MCQ▾

Question

An electron collides with free molecules initially in its ground state. The collision leaves the molecules in an excited state that is metastable and does not decay to the ground state by radiation. Let K be the sum of the initial kinetic energies of the electron and the molecule, and P the sum of their initial momenta. Let K’ and P’ represent the same physical quantities after the collision. Then –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Work, Energy and Power » Elastic and Inelastic Collisions

Appeared in Year: 2016

MCQ▾

Question

An electron with kinetic energy Equation collides with a hydrogen atom in the ground state. The collision will be elastic,

Choices

Choice (4) Response

a.

for Equation only.

b.

for all values of Equation .

c.

for Equation only.

d.

for Equation .

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