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(Download) CBSE: Class XII Physics Question Paper - 2011-SET-2
Class – XII (Year 2011)
Subject – Physics - SET- 2
(i) All questions are compulsory.
(ii) Marks for each question are indicated against it.
(iii) Use of Calculators is not permitted.
- Define the term 'wattless current'.
- When monochromatic light travels from one medium to another its wavelength changes but frequency remains the same. Explain.