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Demonstrating how the angle of the sun's rays changes from day to day at the same hour
Cut a 1-cm round hole in a piece of paper or cardboard. Place this in a south window of your classroom where the sun's rays will shine by the hole and strike a piece of white paper on the floor, the table or window sill. Draw the outline of the spot where the beam of light strikes the paper. Write the date and hour inside the outline. Repeat this on succeeding days at exactly the similar hour
If the electrons striking the target eject an electron from the K-shell of the atom, a vacancy is crated in the K-shell. Instantly an electron from one of the outer most shell, say
Are there different types of optical ports? Optical ports can be divided into two types: pressure and potting. Potting optical ports are small more than a hollow tube into that
what are the combination of clippers ?explain with diagram
Rectifier: Rectifier is a device that converts all alternating current or voltage into direct current or voltage is known as rectifier
What are the methods for producing Ultrasonic waves? Ultrasonic Production: Three methods there for producing Ultrasonic waves are as given below: a. Mechanical generator
Q. Define: ionisation potential? The ionisation potential is that increase speed potential which makes the impinging electron acquires sufficient energy to knock out an electro
Constantan: Constantan is a copper-nickel alloy. The amount of nickel in constantan is 40%. Properties: 1. It is silver like appearance. 2. Its electrical res
Describe the theory of black body. Black body At an exact temperature the black body would produce the maximum amount of energy probable for temperature. This would emit at
Is the fiber end important? So far as the actual light output the fiber termination has little affects on the overall light output. However, it is very important; while at the
A glass sphere of radius 15 cm has a small air bubble at a distance of 6 cm from its centre. When viewed normally along its diameter from the nearest side, the bubble seems to be 7
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