PHY101
Most Important Questions for Final Term
1) Describe a couple of examples during which the force of friction exerted on Associate in Nursing object is within the direction of motion of the article.
2) Is it faithful say that Center of mass and Center of graving square measure the same? Either affirmative or no justify in every case.
3) Why doesn’t the temperature scale have any negative numbers?
4) realize the shift in wavelength of photons scattered by lepton at?
5) A ball is thrown horizontally from a height of 20m and it hits the bottom with a speed that's thrice its initial speed. What was the initial speed?
6) however will the typical price of current be zero and nonetheless the root of the typical square current not b zero?
7) All objects radiate energy. Then why square measure we have a tendency to unable to visualize all the objects during a dark room?
8) A vessel is full of gas at some equilibrium pressure and temperature. will all gas molecules have same speed?
9) A copper conducting wire has primarily no sag between poles thirty five.0 m apart a winter day once the temperature is -20 C. what proportion longer is that the wire on a summer day once.
10) Some scientists estimate that there'll be 3-10 rye in earth’s surface why?
11 )Is it faithful think about ‘torque’ as ‘force’ explain? A force that causes counterclockwise accelerate is positive or negative?
12) during a cool area, a metal or marble table prime feels a lot of colder to the bit than will a wood surface despite the fact that they're at a similar temperature. Why?
13) Intimate is pushing however the box doesn't move. what's the force of static friction shown in below figure?
14) what's the foremost similarity and distinction between meter and straightforward electrical meter?
15) will magnitude of a vector have negative value? justify
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