A. 27cm B. 24cm C. 9cm D. 6cm Correct Answer: Option D D. 6cm Explanation Apparent depth = thickness/refractive index…
A. lens and the film B. diaphragm and the shutter C. shutter and the film D. diaphragm and the film…
A. 60° B. 50° C. 40° D. 30° Correct Answer: Option A A. 60°
A. 0.8Hz B. 5.0Hz C. 50.0Hz D. 80.0Hz Correct Answer: Option D D. 80.0Hz Explanation f = v/π = 20/0.25…
A. production of images by a pinhole camera B. production of real images of objects by lenses C. formation of…
A. moon comes exactly between the earth and the sun B. earth comes exactly between the moon and the sun…
A. 5.0m B. 2.0m C. 0.5m D. 0.2m Correct Answer: Option D D. 0.2m Explanation π=v/f=400/2000 = 0.2m
A. hertz, second and centimeter B. second, metre and hertz C. metre, hertz and seconds D. hertz, second and metre…
A. the liquid left is smaller in volume and the breeze easily cools it B. the more energetic molecules have…
A. heat capacity of ice B. specific heat capacity C. specific latent heat of vaporization of ice D. specific latent…