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) 

Paper on Unit I Bsc HSc II sem

 Time :  20 min   Marks : 10

Q1 a) State Ohm's Law with mathematical equation.    (2) 

b)  Write the expression for equivalent resistance when they are connected in parallel         (3) 

c)  If three resistances are connected in parallel each of value 3 ohm, then calculate the Equivalent resistance. (3) 

                       OR

Q1)  a) Define electric charge and electric field.    (2) 

b) What is Electric current and Potential difference give relation between them. (3) 

c) If 2mA current is flowing in ckt having Potential difference between the resistance is  5v calculate the resistance connected in ckt (3) 

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