Time Left - 30:00 mins
Class XII Physics Atomic Nucleus 3
Attempt now to get your rank among 636 students!
Question 1
Two protons are kept at a separation of 10 nm. Let Fn and Fe be the nuclear force and the electromagnetic force between them -
Question 2
Let Fpp, Fpn and Fnn denote the magnitude of the net force by a proton on a proton, by a proton on a neutron and by a neutron on a neutron respectively. Neglect gravitational force. When the separation is 1 fm, -
Question 3
A high energy gamma ray while passing through the strong electric field of the nucleus sometimes gives rise to a particle and antiparticle. This phenomenon is called
Question 4
The range of nuclear forces is about -
Question 5
The count rate from 200 cm3 of a radioactive liquid is c. Some of this liquid is now discarded. The count rate of the remaining liquid is found to be c/10 after two half-lives. The volume of the remaining liquid, in cm3, is
Question 6
A radioactive sample at any instant has its disintegration rate 5000 disintegrations per minute. After 5 minutes, the rate is 1250 disintegrations per minute. Then, the decay constant (per minute) is
Question 7
Which of the following cannot be emitted by radioactive substance during their decay?
Question 8
The intensity of gamma radiation from a given source is I. On passing through 36 mm of lead, it is reduced to 1/8. The thickness of lead which will reduce the intensity to half of the initial value is
- 636 attempts
- 4 upvotes
- 5 comments
Tags :
Mar 28NEET & AIIMS