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Physics 4 Marks Questions

Model Paper 3 · Gujarat Board (GSEB) STD 12 Science (GSEB - English Medium). 6 questions.

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4 Marks Questions

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6 questions · self-marked practice — reveal the answer and mark yourself.

Question 14 Marks
Which eharacteristics of photoelectric effect are not explained by the wave nature of light. Explain Einstein's explanation.
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Question 34 Marks
Derive $i+c= A +\delta$ for a triangular glass prism. Also write the condition for the angle of minimum devintion. Derive the formula for the refractive index of the material of the prism.
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Question 44 Marks
In the case of an AC voltage applied to an inductor, derive formula for an electric current $i$ at time $t$. Also, derive an expression for an average power over a complete cycle.
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Question 54 Marks
What is electrical resistance $( R )$ ? On which factors resistance value depends? Explain how resistance of conductor depends on its dimension property of a conductor.
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Question 64 Marks
Derive an electric potential at a distance $r(r >> a)$ due to an electric dipole. Also write potential on the axis and in the equatorial plane.
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