Q1. What will be the frequency of oscillation of a simple pendulum in a lift which is falling freely under acceleration due to gravity?
Q2 If the size of a bacteria is 2 micrometre, then how many bacteria can be found in 1m length?
Q3. The heart beats twice in 8/5 s. How many times the heart beats in the life of a man till the age of 60 years ?
Q4.The radius of a hydrogen atom is 0.5 angstrom.find its volume in SI units ?
Q5. There are 50 divisions on the circular scale of a screw gauge.if the head of the screw is given 5revolutions,the spindle advances by 5mm.find its pitch & least count.when reading is taken, the edge of the circular scale is found to be between 0.4 cm & 0.5 cm and 25th division of circular scale coincides with the reference line.find the reading.if the zero error is +0.005 cm,what will be the correct reading?
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