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Making a shadow stick
In an open space on the school ground drive a 130 cm stick into the ground and let the children stay a record of the length of the shadow, calculated two or three times a day at different seasons of the year.
A hiker tosses a rock into a canyon. He hears it strike water 4.78 s later. How far down is the surface of the water?
Distinguish between negative and positive crystal?
Can you explain lens maker's formula. Derive the mathematical expression for the effective focal length of two thin lenses in contact.
Explain the Energy and Mass Albert Einstein described an intricate relationship between matter and energy. It is summarized in the famous formula: E = mc 2 In this equ
A concave lens when given in air has a focal length of 0.4 m and has a refractive index of 3/2. Evaluate its focal length when immersed in water of refractive index 4/3?
Engineers and technologist engage themselves in the design and manufacturing of machine like latches, engines, motors, generators, bulldozers etc. And in the fabrication of vehicle
Q. Illustrate how do you find your body volume using a tape measure? Answer:- Correctly measure a container into which your body will fit comfortably. Previously you recog
Give two basic important characteristics of nuclear forces? Neutrons are the best projectiles of process of nuclear reactions. Why? Give any two properties of neutron.
#question kalari meter
An electron is unrestricted from rest at a point in an evacuated region of space at which the electric potential is 5.0 volts. No force except the force of the electric field chara
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