A biconvex lens made of glass of refractive index 1.5 has radius of currature of both of its surfaces as 40cm. Calculate the (i) power and (ii) focal length of the lens. Also find out the change in the focal length of the lens when it is submerged in water. (The refractive index of water with respect to air, 1.33
Derive expression for the instantaneous kinetic energy, potential energy and the total energy of a simple harmonic oscillator. Show graphically how the potential energy U, kinetic energy K and the total energy E of a simple harmonic oscillator vary with displacement from equilibrium position.
solve any of them please
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A biconvex lens made of glass of refractive index 1.5 has radius of currature of both of its surfaces as 40cm. Calculate the (i) power and (ii) focal length of the lens. Also find out the change in the focal length of the lens when it is submerged in water.
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