Practice mode / Physics The protons and neutrons are found in the center of the atom, which is called the ____of the atom? A Option A: Nucleus B Option B: Headquarters C Option C: Hub D Option D: None of These Correct answer A. Nucleus Show answer Report a problem How we write and check questions
Question 01 / Physics A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect? A Option A: Current B Option B: Voltage C Option C: Nuclear Radiation D Option D: power E Option E: None of these Correct answer C. Nuclear Radiation Show answer Open question
Question 02 / Physics Magnifying power of a simple microscope can be increased by? A Option A: increasing focal length of the lens B Option B: Decreasing focal length of the lens C Option C: Lens of large aperture D Option D: lens of short aperture E Option E: None of these Correct answer B. Decreasing focal length of the lens Show answer Open question
Question 03 / Physics Twinkling of stars is caused by? A Option A: Reflection of light B Option B: Polarization of light C Option C: refraction of light D Option D: Interference of light E Option E: None of these Correct answer C. refraction of light Show answer Open question
Question 04 / Physics In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called? A Option A: Chemical Reaction B Option B: Nuclear reaction C Option C: Fission nuclear reaction D Option D: Fusion nuclear reaction E Option E: None of these Correct answer D. Fusion nuclear reaction Show answer Open question
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