CBSE Class 12 Physics Sample Paper 2017 (2). It’s always recommended to practice as many sample papers as possible before the examinations. Students can download the sample papers and also question papers of previous years to practice and score better marks in examinations. Refer to other links too for more sample papers.
Q1. Using the concept of force between infinite long parallel current carrying conductors, define one ampere of current.
Q2. A biconve lens made of transparent material of refractive index1.5 is immersed in water of refractive index 1.33, will the lens behave as a conversing or a diverging lens? Give reason.
Q3. To which part of the electromagnetic magnetic spectrum does a wave of frequency 5×1019Hz belong?
Q4. How does focal length of a lens change when red light incident on it is replaced by violet light? Give Reason for your answer.
Q5. The given graph shows the variation of photo‐electric current (I) versus applied voltage (V) for two difference
photosensitive materials and for two different intensities of the incident radiations. Identify the pairs of curves that
correspond to different materials but same intensity of incident radiation.
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