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UNITED BOOK HOUSE-QUESTION PAPER 2017-EXERCISE
- State that laws of reflection of light .State the laws of refraction o...
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- Define resolving power of an optical instrument.
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- The resolving power of a microscope at 6000 overset(@)A is 10^4. What ...
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- Under what condition will the object and image always be on the same ...
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- An image of size 1/n times the object size is formed in a convex mirro...
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- Why is red light used as danger signal?
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- Explain by using graph the minimum angle of deviation of a ray of ligh...
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- Production of X-rays and emissions of electron in photoelectric effect...
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- Find the energy required by an electron to have its de Broglie wavelen...
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- State the features of photoelectric effect
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- In a magnetic field the curvature of the path of a beta- particle is g...
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- What will be the wavelength of the light emitted due to a transition o...
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- Which kind of nuclear reaction produces energy in a nuclear reactor...
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- In a nuclear decay, a nucleus emits one alpha-particle and then two be...
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- If two inputs of a NAND gate are joined, what type of a gate is formed...
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- State one difference between n-type and p-type semiconductors.
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- In a transistor emitter-base junction is always forward biased while t...
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- Show that equivalent resistance in parallel combination is always less...
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- How can the sensitivity of a potentimeter be increased ?
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- A Potentiometer has 10 wires each of 1 metre length and the total resi...
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