Day 405: MHT-CET Physics

1. A.
   mirage on hot summer days.
2. B.
   brilliance of diamond
3. C.
   difference between apparent real depth of a pond
4. D.
   working of optical fiber.

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1. A.
   $\pi$ rad
2. B.
   $2\pi$ rad.
3. C.
   $3\pi$ rad.
4. D.
   $4\pi$ rad

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1. A.
   $\frac{1}{\pi}\sqrt{\frac{ML}{mg}}$
2. B.
   $\frac{1}{2\pi}\sqrt{\frac{Mg}{mL}}$
3. C.
   $\frac{1}{\pi}\sqrt{\frac{Mg}{mL}}$
4. D.
   $\ \frac{1}{2\pi}\sqrt{\frac{ML}{mg}}$

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1. A.
   Zener diode - voltage regulator
2. B.
   Photodiode - optocouplers
3. C.
   Solar cell - Electrical energy into light
4. D.
   Light optical communication

Tap an option to check your answer.

1. A.
   $3\pi a_0$
2. B.
   $6\pi a_0$
3. C.
   $9\pi a_0$
4. D.
   $12\pi a_0$

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