A pair of scissors
A ramp
A lever
The pulley
Which of these is the cause of Friction?
Which of these is true of all simple machines?
Which of these parts of the ear responds to sound waves like a microphone’s diaphragm?
Which one among the following doesnt have any effect on velocity of sound ?
Which one of the expression satisfies the condition of maximum power transfer theorem ?
Which one of the following does a TV remote control unit use to operate a TV set?
Which one of the following does TV remote control unit use to operate a TV set?
Which one of the following has the highest value of specific heat ?
Which one of the following instruments is used to study dispersion of light?
Which one of the following is a good electrical conductor?