Work, Energy and Power (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 61 - 63 of 63

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Question number: 61

» Work, Energy and Power » Work Done

Appeared in Year: 2016

MCQ▾

Question

A particle moves from a point Equation to Equation when a force of Equation is applied. How much work has been done by the force?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 62

» Work, Energy and Power » Conservative and Non-Conservative Forces

Appeared in Year: 2017

MCQ▾

Question

Consider a drop of rain water having mass Equation falling from a height of Equation . It hits the ground with a speed of Equation . Take Equation constant with a value Equation . The work done by the:

Equation Gravitational force and

Equation Resistive force of air is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 63

» Work, Energy and Power » Conservative and Non-Conservative Forces

Appeared in Year: 2017

MCQ▾

Question

Suppose the charge of a proton and an electron differ slightly. One of them is Equation , the other is Equation . If the net of electrostatic force and gravitational force between two hydrogen atoms placed at a distance Equation (much greater than atomic size) apart is zero, then Equation is of the order of –

Equation

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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