Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 20 cm 5 cm 10 cm 15 cm 20 cm 5 cm 10 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Piezo - electric Effect Photoelectric Effect Edison Effect Johnson Effect Piezo - electric Effect Photoelectric Effect Edison Effect Johnson Effect ANSWER DOWNLOAD EXAMIANS APP
Physics A television channel is characterised by Velocity of transmitted signal Size of picture tube Frequency of transmitted signal Physical dimension of television screen Velocity of transmitted signal Size of picture tube Frequency of transmitted signal Physical dimension of television screen ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is true of all simple machines? Work input > work output None of these These make work easier Both A & B Work input > work output None of these These make work easier Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : With the speed of light Heating the medium through which it passes In all directions In a straight line With the speed of light Heating the medium through which it passes In all directions In a straight line ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the waves have the longest wavelength Blue Violet Green Red Blue Violet Green Red ANSWER DOWNLOAD EXAMIANS APP
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