Work, Energy and Power [HBCSE Olympiads (Homi Bhabha Centre for Science Education) NSEP (Physics)]: Questions 1 - 4 of 4

Access detailed explanations (illustrated with images and videos) to 63 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 100.00 -OR-

How to register? Already Subscribed?

Question 1

Work, Energy and Power

Appeared in Year: 2016

Question

MCQ▾

Two particles of masses and are initially at rest and infinitely separated. At a later instant when they are at a finite distance from each other, their relative velocity of approach is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 2

Work, Energy and Power

Appeared in Year: 2016

Question

MCQ▾

An electron is injected directly towards the centre of a large metal plate having a uniform surface charge density of . The initial kinetic energy of the electron is . The electron is observed to stop as it just reaches the plate. Therefore the distance between the plate and the point from where the electron was injected is –

Choices

Choice (4)Response

a.

b.

c.

Data insufficient

d.

Question 3

Work, Energy and Power

Appeared in Year: 2016

Question

MCQ▾

The force of attraction between the positively charged nucleus and the electron in a hydrogen atom is given by . Assume that the nucleus is fixed. The electron, initially moving in an orbit of radius jumps into an orbit of smaller radius The decrease in the total energy of the atom is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 4

Work, Energy and Power

Appeared in Year: 2016

Question

MCQ▾

A block of mass drops vertically from a height of onto a spring whose force constant K is . Therefore, the maximum compression of the spring is –

Choices

Choice (4)Response

a.

b.

c.

d.