The symbol of the prefix used for Mega is_______?
The symbol of the prefix used for Mega is_______?A. G
B. h
C. M
D. E
B. h
C. M
D. E
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A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?
A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?A. πR
B. 2π R
C. 0
D. 4πRWhich of the following radiations are suitable for the treatment of an infection in the interior of the body ?
Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?A. α-rays
B. β-rays
C. γ-rays
D. X-raysA piece of copper and a piece of germanium are cooled from the room temperature down to 77 K.
A piece of copper and a piece of germanium are cooled from the room temperature down to 77 K.A. The resistance of each of them increases.
B. The resistance of each of them decreases.
C. The resistance of copper decreases and that of germanium increases.
D. The resistance of copper increases and that of germanium decreasesIn simple cube one atom or molecule lies at its______________________?
In simple cube one atom or molecule lies at its______________________?A. Force corners
B. Nine corners
C. Eight corners
D. Six cornersMichelson calculated the speed of light using the instruments______________?
Michelson calculated the speed of light using the instruments______________?A. spectrometer
B. galvanometer
C. interferometer
D. none of theseThe minimum distance between an object and its real image in a convex lens is_____________?
The minimum distance between an object and its real image in a convex lens is_____________?A. 2 f
B. 2.5 f
C. 3f
D. 4f