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The absolute pereability of free space in s.I uniits is

Posted by Pintu Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Aditya Kumar 7 years, 11 months ago

WbA-1m-1. OR TA-1m

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I want to known how I can prepare for physics its one of the harder subject

Posted by Bhavya Kataria 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Bhavya Kataria 7 years, 11 months ago

Thank u ?

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Lekha Raj 7 years, 11 months ago

Solve more smpl paper as you can......that's it!

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Lekha Raj 7 years, 11 months ago

Just to work hard.......???????

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what is called aantina

Posted by Chandra Prakash 7 years, 11 months ago

CBSE > Class 12 > Physics

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What is the electricity

Posted by Rahul Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Priyanka Shinde 7 years, 11 months ago

A form of energy resulting from the existence of charged particles either statistically as an accumulation of charge or dianamically as a current.

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Why is wave nature ofmatter not more apparent to our daily life

Posted by Akashdeep Naruka 7 years, 11 months ago

CBSE > Class 12 > Physics

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Can you tell me date of exam of physics

Posted by Prince Birda 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

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Why inside a conductor charge is zero?

Posted by Avijeet Goswami 7 years, 11 months ago

CBSE > Class 12 > Physics

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When we will get roll no of cbse

Posted by Salman Naqvu 7 years, 11 months ago

CBSE > Class 12 > Physics

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Explain the variation of resistance and resistivity with temperature and hence define temperature coefficient of resistance and resistivity ?

Posted by Sakshi Sneha 7 years, 11 months ago

CBSE > Class 12 > Physics

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Best definition of LC oscillation

Posted by Ritik Jalal 7 years, 11 months ago

CBSE > Class 12 > Physics

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AM signal is likely to be more noisy than a FM signal upon transmission through a channel. How?

Posted by Sonam Soni 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Amar Kumar 7 years, 11 months ago

In case of AM, the instantaneous voltage of carrier waves is varied by the modulating wave voltage. So, during the transmission, noise signals can also be added and receiver assumes noise a part of the modulating signal. In case of FM, the frequency of carrier waves is changed as the change in the instantaneous voltage of modulating waves. This can be done by mixing and not while the signal is transmitting in channel. So, noise does not affect FM signal.

AM is more susceptible to noise because noise affects amplitude, which is where information is stored in an AM signal. FM is less susceptible to noise because information in an FM signal is transmitted through varying the frequency, and not the amplitude.

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What is Brewster's law?

Posted by Priyanka Shinde 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Squeaky Pathak 7 years, 11 months ago

Brewster law help to understand how, it varies with angle it says that maximum polarization will happen when angle between reflected ray and refracted ray is 90 degree

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Sahiba Bhayana 7 years, 11 months ago

When unpolarised light is incident at polarising angle on an interface separate air from a medium of refractive index ( mew)then the reflected light is fully polarized provided [mew =tan p].

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Sahiba Bhayana 7 years, 11 months ago

When unpolarised light is incident at polarising angle on an interface separate air from a medium of refractive index ( mew)then the reflected light is fully polarized provided [mew =tan p].

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If we leave a meta in sunshine its electon move out from it so its atm stability desnot decrease

Posted by Ayush Rawat 7 years, 11 months ago

CBSE > Class 12 > Physics