Physics An optically plane surface reflects a beam of light As a diffused beam in one direction As a parallel beam in one direction As diffused beams in all directions As parallel beams in all directions As a diffused beam in one direction As a parallel beam in one direction As diffused beams in all directions As parallel beams in all directions ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following features of a tunnel diode is its drawback Very wide temperature range of operations Extremely high frequency response Instability due to negative resistance Very low power consumptions Very wide temperature range of operations Extremely high frequency response Instability due to negative resistance Very low power consumptions ANSWER DOWNLOAD EXAMIANS APP
Physics A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: Just before it touches the ground Just after it is dropped When it is just on the half-way When it touches the ground Just before it touches the ground Just after it is dropped When it is just on the half-way When it touches the ground ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its coefficient of expansion Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion Contracts It expands or contracts according to its diameter Expands ANSWER DOWNLOAD EXAMIANS APP
Physics According to special theory of relativity the mass of a particle Decreases with decrease in velocity. Increases with increase in velocity with respect to an observer. Is independent of its velocity. Decreases with increase in velocity. Decreases with decrease in velocity. Increases with increase in velocity with respect to an observer. Is independent of its velocity. Decreases with increase in velocity. ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to ozone Due to low air pressure Due to high humidity Due to low temperature Due to ozone Due to low air pressure Due to high humidity Due to low temperature ANSWER DOWNLOAD EXAMIANS APP
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