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If the difference between the real depth and apparent depth of a swimming pool filled with water is 1.6m, determine the depth of the pool Assume refractive index of water is 1.33


A 40hz vibration generate a wave in a ripple tank if the speed of the wave in two different length of the tank are 0.8m/s and 0.5m/s calculate the different between the lengrh.

in case of practical of refraction what will be the angle of deviation if the angle of incidence is 10, 20, 30, 40, 50, 60, 70

What is the angle of deviation when the angle of incidence is 10, 20, 30, 40, 50, 60, 70
When a plane mirror on which a ray is incident is rotated through 100, the reflected ray is rotated through what angle
What is glancing Angle?

A short linear objectbof height b lies along the axis of a concave mirror that has a focal length of f and at a distance b from the pole of mirror. What is the height of the image?


A metal wire that is 3m long at 20 degrees Celsius is found to increase in length by 1.5cm when heated to 520 degrees Celsius. Determine the Coefficient of the linear expansion of the metal?
Steel railroad rails 18,2880m long are laid on a winter day when the temperature is - 6,00 degrees Celsius. How much space must be left between rails if they are just to touch on a summer day when the temperature is 43 degree Celsius.
A ray of light is minimally deviated when incident at an angle 30 degrees on one face of a glass prism of refractive index 1.5. The minimum angle of deviation is?
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