Which device uses ultrasonic waves for getting images of internal organs of human body?
A ray of light from the object parallel to principal axis of a concave lens, after refraction appears to diverge from which point on the same side of th...
A bus moving along a circular track is an example of
If an object starts moving and if there is no friction at all, what happens?
A girl is standing 5 metres away from a plane mirror. How much distance should she move towards the mirror so that she will be 2 metres farther from her...
A simple microscope consists of :
Quantum Theory was discovered by
Which of the following instruments is correctly matched with its function?
I) Voltmeter - Measures potential difference
II) Ammeter - Me...
How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?
Which one of the following animals can hear ultrasonic sound?