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Who of the following scientists proved that the stars with mass less than 1.44 times the mass of the Sun end up as White Dwarfs when they die ?
Which one of the following types of waves are used in a night vision apparatus ?
In a dry cell (battery), Which of the following are used as electrolytes ?
A person is sitting in a car which is at rest. The reaction from the road at each of the four wheels of the car is R. When the car runs on a straight level road,how will the reaction at either of the front wheels vary ?
Three identical vessels A,B and C are filled with water,mercury and kerosene respectively up to an equal height. The three vessels are provided with identical taps at the bottom of the vessels. If the three taps are opened simultaneously, then which vessel is emptied first ?
Which one of the following laser types is used in a laser printer ?
Consider the following statements: 1. A widely used musical scale called diatonic scale has seven frequencies. 2. The frequency of the note Sa is 256 Hz and that of Nifty is 512 Hz Which of the statements given above is/are correct ?
Who among the following discovered heavy water ?
Four wires of some material and of dimensions as under are stretched by a load of same magnitude separately. Which one of them will be elongated maximum ?
Which one of the following parts of the pitcher plant becomes modified into a pitcher ?
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