91. The bats can fly in the dark because
92. The device used for locating submerged objects under sea is.
93. The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as
94. In mirrors the back surface is coated with a thin layer of :
95. A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.
96. The snow on the mountains does not melt all at once when it is heated by the sun because:
97. Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly
98. In which one of the following the phenomenon of total internal reflection of light is used ?
99. Which type of mirror is used in the head lights of vehicles ?
100. If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?
Read More Section(Physics)
Each Section contains maximum 100 MCQs question on Physics. To get more questions visit other sections.