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The correct answer is A
A particle is moving along a circular path of radius r with constant speed. The acceleration of the particle is:
Gamma rays have greatest similarity with –
Which of the following principle is used to produce low-temperatures'?
Sensitivity of the human eye is maximum in the –
Which of the following is not a property of electromagnetic waves?
The instrument used to see the distant objects on the Earth is –
The intensity of any wave is proportional to which quantity?
Which of the following statement is correct?
I. Friction is caused by the irregularities on the two surfaces in contact
II. Friction is a necessary evil
A body is projected upwards with an initial velocity u . At the highest point, what is its acceleration?
A larger force on a rotating body results in larger _____.