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Demonstrating the cause of the phases of the moon
Place a lighted candle or electric lamp on a table in a darkened room. Paint an 8 cm rubber ball white. Hold the ball in your hand at arm's length with your back to the light. Raise the ball sufficient above your head to permit the light to strike the ball. Note the part of the ball illuminated by the candle.
State the importance of emission and absorption spectra. Derive the mathematical expression for refractive index of material of the prism.
uses of preset inductor
A baseball bat strikes a ball with a force of 30 newtons. If the ball was in contact with the bat for 1/10 of a second, What impulse did the ball receive? Ans - 3 Newt
a uniform sphere of mass 2kg is kept in a fixed position by two strings AB and CD. AB is horizontal and CD is inclined at 30° to the vertical. calculate the tension in each string.
Q. What is an intrinsic semiconductor? Give any two examples. A) A semiconductor which is pure as well as contains no impurity is known as an intrinsic semiconductor. B) In
Production of electricity by heat: The Seebeck effect - the thermocouple . When two different metals are brought into contact with one another, it is found that electrons can
A sinusoidal voltage trace displayed by an oscilloscope is shown in Figure. If the 'time/cm' switch is on 500µs/cm and the 'volts/cm' switch is on 5V/cm, find, for the waveform,
BALLISTIC FLIGHT: "A flight in which a projectile is given a starting push and is permitted to move freely due to inertia and under the action of gravity is known as ballistic
Write down the expression for the equivalent focal length of two thin lenses separated by a distance and illustrate the terms.
A virtual image can be formed by one or more of the following single mirrors? Identify them. a) Plane mirror b) Concave spherical mirror c) Convex spherical mirror
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