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Ravi Dahiya became the second Indian wrestler after Sushil Kumar to win an Olympic silver medal for the country.
Which of the following statement is correct?
I. The incident ray, the normal at the point of incidence and the reflected ray all lie in the sa...
Which of the following is caused due to the Newton’s first law of motion?
I. When a motorcar makes a sharp turn at a high speed, we tend to ...
A ray of light is incident on a transparent medium at an angle of 60°. The reflected ray of light is found to be completely Q.4 polarized. Then, the r...
Which of the following is an example of a chemical change?
In order to use the transistor as an amplifier, it has to operate in the____ region
What do we call sound waves with frequencies below 20 Hz?
An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is New...
The point where the total mass of a body is considered to be concentrated is known as what?
When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance?
A body falls freely from a height of 80 m. Time taken to reach the ground is: