निम्नलिखित विकल्पों में से known शब्द का पर्याय नहीं होता है।
ज्ञान-स्तर = knowledge level
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
A positron is an anti-particle of an electron, having the same mass but opposite charge to electron. Then, the minimum energy released in annihilation ...
Which of the following statement is correct?
I. Value of ‘g’ is higher at poles than equator
II. Weight of an object at moon is 1...
Specific resistance of a conductor increases with :
Which of the following pair regarding sound is correct?
I. Loudness – depends on amplitude
II. Shrillness – depends on frequency
The unit of measurement of noise is –
The oldest type of energy known to man is –
What is the focal length of a double convex lens for which the radius of curvature of each surface is 30 cm and the refractive index of glass is 2.50 ?
Which of the following materials behaves as a dielectric?