NTPC CBT-2 Physics Quiz - 66

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Question 1:

A bullet of mass 20 g is fired in the horizontal direction with a velocity 150 m/s from a pistol of mass 1 kg. Calculate the recoil velocity of the pistol?

Question 2:

Metal frying pans have wooden handles due to which of the following reasons?

Question 3:

Find the initial volume of a gas at 100 K, if the final volume is 5 L at 50 K

Question 4:

In optical instruments, the lenses are used to form image by the phenomenon of ?

Question 5:

When the body is thrown in an upward direction then what happens to kinetic energy and potential energy of the object?

Question 6:

100 joules of heat is produced per second in a 4 ohm resistor. What is the potential difference across the resistor ?

Question 7:

Which of the following colours have maximum deviation?

Question 8:

If an object is covering equal distance in equal intervals of time it is said to be in-

Question 9:

The density of water is maximum on-

Question 10:

A resistor has a resistance of 176 ohms. How many of these resistors should be connected in parallel so that their combination draws a current of 5 amperes from a 220 volt supply line ?