Physics A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an Infrasonic wave Ultrasonic wave Microwave Audible wave Infrasonic wave Ultrasonic wave Microwave Audible wave ANSWER DOWNLOAD EXAMIANS APP
Physics The bending of light when it passes around a corner or a slit is due to ________ Refraction Reflection Diffraction Total internal reflection Refraction Reflection Diffraction Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum distance (in metres) required to hear an echo? 10 17 21 13 10 17 21 13 ANSWER DOWNLOAD EXAMIANS APP
Physics A balloon filled with hydrogen will Continue going upwards uninterrupted Reach a particular height and remain floating Burst after reaching some height Reach a particular height and start coming down Continue going upwards uninterrupted Reach a particular height and remain floating Burst after reaching some height Reach a particular height and start coming down ANSWER DOWNLOAD EXAMIANS APP
Physics In the process of magnetisation of a bar The entire bulk of the bar gets magnetised Only the ends of the bar get magnetised Only the surface of the bar gets magnetised Only some parts of the outer layers of the bar get magnetised The entire bulk of the bar gets magnetised Only the ends of the bar get magnetised Only the surface of the bar gets magnetised Only some parts of the outer layers of the bar get magnetised ANSWER DOWNLOAD EXAMIANS APP
Physics According to special theory of relativity the mass of a particle Decreases with decrease in velocity. Is independent of its velocity. Increases with increase in velocity with respect to an observer. Decreases with increase in velocity. Decreases with decrease in velocity. Is independent of its velocity. Increases with increase in velocity with respect to an observer. Decreases with increase in velocity. ANSWER DOWNLOAD EXAMIANS APP
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