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(i) Lead balls are spherical in shape.
(ii) Rain leaves and a globule of mercury placed on glass plate are spherical.
(iii) Hair of shaving painting brush, when goes in water spread out, but as soon as it is taken out. Its fur sticks together.
(iv) A greased needle saved gently on the free surface of water in a beaker does not sink.
(v) Likewise, insects may go on the free area of water without drowning.
(vi)Bits of computer gum go irregularly when engaged on water surface.
It is the property of a material by virtue of which it allows itself to be magnetized. Permeability varies from material to material depending upon the saturation and temperature.
Q. State the conditions to achieve total internal reflection. For entire internal reflection to take place (a) Light should travel from a denser medium to a rarer medium an
Two travelling sinusoidal waves are described by the wave functions Y1 = 55.00 sin[π(4.00x - 1200t)] Y2 =55.00 sin[π(4.00x - 1200t - 0.250)] where x, Y1 , and Y2 are in meter
Causality principle The principle which cause has to always preceed effect. More formally, if an event A ("the cause") somehow effect an event B ("the effect") that occurs lat
Work is equal to which of the following? a) The cross product of force and displacement. b) The product of force times time c) Force divided by time d) The dot
Could the light along a side emitting optic be a totally homogeneous? Regardless of the assurances of several manufacturers, it is a total impossibility since it would clash wi
WHAT ARE THE PROPERTIES OF MAGNETS?
Q. If a dog rolled around on a carpet as well as gets statically and a flea jumps on it will the flea get electrocuted? Answer:- It will but possibly not and such experime
Given below are two electric circuits A and B Measure the ratio of power factor of the circuit B to the power factor of circuit A.
State the law of radioactive decay. Show that radioactive decay is exponential in nature. Does the activity of a radioactive element depend on external physical conditions? La
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