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T

Taranum 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is intensity of light?

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J

Jagmohan replied | 19/11/2016

If light is represented as e=E sin(wt), than Intensity I=E^2.

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P

Preeti 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Why it takes much longer to cook food in hill stations then in the plains?

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J

Jagmohan replied | 19/11/2016

PV=RT=constant
As you know in pressure cooker food cooks faster due to high pressure created in cooker. At height or hill station pressure is less than pressure in plain due to less pressure, T decreases and therefore it takes more time to cook food in height.

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G

Geeta 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the use of optical fibre?

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J

Jagmohan replied | 19/11/2016

As you know we use electrical cables to carry electrical signals while optical fiber carry optical signals. Previously cables were mostly used for these transmissions. Now a days we are using fiber because it is more economical its cost to carry the same no. of signals is less than cable. For this we convert electrical signal to optical signal by LED (light emitting diode) transmit over Fiber.

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S

Shreyansh 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is supersonic plane?

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J

Jagmohan replied | 19/11/2016

Means for which speed is greater than speed of sound.

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S

Saddam 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

On what principle AC generator is work?

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J

Jagmohan replied | 19/11/2016

AC generation is nothing but conversion of one type of energy into electrical energy.
Like in hydro power system first potential energy of water is converted into mechanical energy than this mechanical energy is converted into electrical energy.

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S

Shishir 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

How radiocarbon is produced in the atmosphere?

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A

Aishwarya 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Why it is easier to roll a stone up a sloping road than to lift it vertical upwards?

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S

Sai 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the SI unit of Nuclear sizes?

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V

Vishal 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Give an example of a material each for which temperature coefficient of resistivity is positive and negative?

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S

Shagufta 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Name the network within an institution, made by connecting all or some of their computers?

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P

Praneeth 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

A monochromatic light source of power 5mW emits 8 * 10 power 15 photons per second. This light ejects photoelectrons from a metal surface. The stopping potential for this set up is 2V. Calculate the work function of the metal?

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P

Praveen 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Define potential difference?

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D

Dhanya 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the difference between photon theory and wave theory?

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A

Anish 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Define LAN?

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B

Baby 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is magnetic compass?

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U

User 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What do you mean by Gravitational force?

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K

K. 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the constant value of gravitation?

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A

Anand 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the difference between LAN and WAN?

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A

Atim 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

How mirage is occurred?

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J

Janardan 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the unit of pressure?

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V

Virendra 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Why planets do not twinkle?

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A

Atharva 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

Why metals are good for electricity?

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S

Sandhya 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the work of capillary tube?

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D

Divya 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What is the difference between fundamental quantity and derived quantity?

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N

Non 14/10/2016 in  Class XI-XII Tuition (PUC), Physics(Class XI-XII Tuition (PUC))

What do you M, L, T in measurement system of dimension?

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