Physics Past Questions and Answers

A certain far - sighted person cannot see object that are closer to the eye than 50 cm clearly. Determine the power of the converging lens which will enable him to see at 25 cm

A 0.06 D
B 0.02 D
C 0.03 D
D 0.04 D
E No option is correct

Question 1602:

The eclipse of the sun occurs when the

A Moon is between the sun and the earth
B Earth is between the sun and the moon
C Moon is not completely hidden in the earth's shadow
D Moon's umbra falls on some part of the earth

Question 1603:

Which of the following is a property of steel?

A It cannot retain its magnetism longer than iron
B It can be used for making temporary magnets
C It can be used for making permanent magnets
D It can easily be magnetized and demagnetized

Question 1604:

In measuring high frequency a.c, the instrument used is the

A D.c ammeter
B Moving coil ammeter
C Moving iron ammeter
D Hot wire ammeter

Question 1605:

If the charge of electricity is K wh is N4, what is the cost of operating an electrical appliance rated 250 v,2 A for six hours?

A N28
B N12
C N16
D N24