Paper on Unit II Bsc HSc II sem

 Time :  20 min   Marks : 10

Q1 a) State the nature of light as Electromagnetic wave.    (2) 

b)  Write the equation for the relationship between velocity and wavelength    (3) 

c)  If the velocity of light is 3 X 10^8 m/s,and it's wavelength is 450 nm then calculate the Frequency if light. (3) 

                       OR

Q1)  a) The laws of reflection.    (2) 

b ) Explain snell's law with suitable diagram. (3) 

c) If the angle of incidence is 40° and angle if refraction is 30° then Calculate the refractive index. (3) 

Q2 Write any four good and bad conductors of electricity. (2)