A. a beta particle B. an alpha particle C. a gamma ray D. a neutron Correct Answer: Option A A.…
A. an explosion is observed B. the rainbow colours are seen C. an emission spectrum is observed D. dark lines…
A. ultraviolet radiation B. x-rays C. gamma rays D. infrared radiation Correct Answer: Option D D. infrared radiation
A. N280.00 B. N28.00 C. N7.20 D. N1.44 Correct Answer: Option B B. N28.00 Explanation P = (80 x 5…
A. 320J B. 400J C. 10800J D. 72000J Correct Answer: Option D D. 72000J Explanation W = P x t…
A. falling of mango fruit from the tree B. picking of nails using a bar magnet C. repulsion of two…
A. inductor B. resistor C. capacitor D. electrometer Correct Answer: Option C C. capacitor
A. vibrates with its natural frequency B. is forced to vibrate on its own natural frequency by another body at…
A. the focus B. infinity C. the centre of curvature D. a distance twice the radius of curvature Correct Answer:…
A. converging lens B. diverging lens C. converging mirror D. parabolic mirror Correct Answer: Option C C. converging mirror