Class – XII (Year 2009)
Subject – Physics - (Outside)

General Instructions:
(i) All questions are compulsory.
(ii) Marks for each question are indicated against it.
(iii) Use of Calculators is not permitted.

1. Name the EM  waves used for studying  crystal structure of solids. What is its frequency range ?
2. Two thin lenses of power +6D and -2D are in contact. What is the focal length of the combination ?
3. Give the logic symbol of NOR gate.

(E-Book) CBSE Board Class 12th Papers PDF : Physics

Courtesy: cbse.nic.in