CBSE Class 12 Physics Question Paper 2009 (1)

CBSE Class 12 Physics Question Paper 2009 (1). Students can download the last year question papers using the link below. Free download of examination question papers with solutions.Last 10 year question papers should be practised to get better marks in examinations.

Q1. Name the electromagnetic radiation to which waves of wavelength in the range of 10-2 m belong. Give on use of this part of EM spectrum. 

Q2. What is ground wave propagation?

Q3. Magnetic field lines can be entirely confined within the core of a toroid, but not within a straight solenoid. Why? 

Q4. Unpolarized light is incident on a plane surface of glass of refractive index m at angle i. If the reflected light gets totally polarized, write the relation between the angle i and refractive indexm .

Q5. Draw a diagram to show refraction of a plane wave front incident in a convex lens and hence draw the refracted wave front. 

Q6. the figure shows a plot of three curves a, b, c showing the variation of photocurrent vs collector plate potential for three different intensities I1, I2 and I3 having freq1uencies v1, v2 and v3 respectively incident on a photosensitive surface. Point out the two curves of which the incident radiations have same frequency but different intensities.

Q7. A cell of emf ‘E’ and internal resistance ‘r’ is connected across a variable resistor ‘R’. Plot a graph showing the variation of terminal potential ‘V’ with Resistance R. 

Q8. The output of a 2 – input AND gete is fed to a NOT gate. Give the name of the combination and its logic symbol. Write down its truth table.

Please click the link below to download pdf file of CBSE Class 12 Physics Question Paper 2009 (1).