Question
A meter stick moves along its length with a certain
speed. The apparent length of the moving meter stick as measured by a stationary observer on the ground is found to be 98 cm. Then, the velocity v of the meter sticks in terms of the speed" of light in vacuum c will be:Solution
The correct answer is B
According to Newton’s second law of motion, the acceleration of an object is directly proportional to the
Group number and valency have no relation in
Which organ removes carbon dioxide from the blood?
Which part of the brain is responsible for balance and coordination?
The refractive index of water and turpentine oil are 1.33 and 1.47, respectively. A ray of light travels from
turpentine oil to water. The re...
In Bohr’s model of the hydrogen atom, electrons in “stationary” orbits do not emit radiation continuously because:
Two identical circular current-carrying loops, placed coaxially, carry the same current i in the same direction . As the loops are brought closer to eac...
Which of the following is a renewable energy source?
What do we call sound waves with frequencies below 20 Hz?
Natural radioactivity was discovered byÂ
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