Physics Test 81

Result

Physics Test 81

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Question 1
4 / -1

A simple pendulum has a period T. It is taken inside a lift moving up with uniform acceleration of g/3. Now, its time period will be :-

A
√2/3 T

B
√3/2 T

C
2T/√3

D
3T/√2
Question 2
4 / -1

In nuclear fission process

(i) The probability of neutron being absorbed by a fissionable nucleus, increases when the neutrons are speeded up to high kinetic energy

(ii) The energy is released in the elements of high atomic mass number

(iii) The linear momentum, angular momentum and the total energy is conserved

(iv) The linear momentum and total energy is conserved, but not the angular momentum

A
(i), (ii) and (iii) are correct

B
(ii), (iii) and (iv) are correct

C
(i) and (ii) are correct

D
(ii) and (iii) are correct

Solution

In a nuclear reaction total energy and momentum are conserved.