Q41.’Cryogenics’ is a science dealing with
Ans-Low temperature
Q42.What is the reason of twinkling of stars?
Ans-Atmospheric refraction
Q43.The instrument for measuring intensity of earthquakes is called
Ans-Seismograph
Q44.A fountain pen works on the principle of
Ans-Capillary action
Q45.Fiber optics work on the principle of
Ans-Total internal reflection
I’m Nitesh Brithwal Nanu , An Indian Engineer who is passionate about technology , current affairs , general Knowledge & programming . Constantly learning and experiencing new things.
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