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XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-A
- State one factor which determines the intensity of light in the photon...
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- An iron-cored solenoid has self- inductance. 2.8 H. When the core is r...
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- An object is kept in front of a concave lens.What is the nature of the...
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- When light travels from a rarer to denser medium, it loses some speed....
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- A point charge +Q is placed in the vicinity of a conducting surface. D...
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- Define modulation index. Why is it generally kept less than one ?
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- In the figure given, mark the polarity of plates A and B of a capacito...
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- The objective lenses of two telescope have the same apertures but thei...
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- Define the conductivity of a conductor. Write its SI unit
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- Nichrome and copper wires of same length and same radius are connected...
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- Do electromagnetic waves carry energy and momentum?
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- How does the angle of minimum deviation of a glass prism vary, if the...
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- Name the phenomenon which shows the quantum nature of electromagnetic ...
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- Draw the pattern of electric lines, when a point charge - Q is kept ne...
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- How does the mobility of electrons in a conductor change, if the poten...
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- Define the term "threshold freq uence", in the context of photolelectr...
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- Define the term "Intensity" in photon picture of electromagnetic radia...
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- What is the speed of light in a denser medium of polarising of polaris...
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- Why is the transmission of signals using sky waves restricted to frequ...
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- On what factors, does the maximum range of ground wave propagation dep...
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