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  • 4 answers

Nandini Kanwar 6 years ago

For optical signals

Riya Rana 6 years ago

Detection of optical signal and demodulation.

Vashu Yadav 6 years ago

I think demodulation
Solar cell
  • 2 answers
Process of protecting a substance from electric field by putting it inside the conductor...... as electric field inside the conductor is 0 ....as whole charge remains outside the surface of conductor....

Vashu Yadav 6 years ago

It is a process of sheilding or protecting a particular are or substance from electric field
  • 2 answers
Wheatstone bridge

Arnav Kandari 6 years ago

The meter bridge principle is based on the Wheatstone Bridge circuit which says that if at any point or length (of a wire), the ratio of two resistances (say R1 and R2) is equal to the ratio of another two resistances (say R3 and R4 where R4 is the unknown resistance)
  • 1 answers

Arnav Kandari 6 years ago

Gamma decay: When an electron changes levels, the energy involved is usually a few eV, so a visible or ultraviolet photon is emitted. In the nucleus, energy differences between levels are much larger, typically a few hundred keV, so the photon emitted is a gamma ray.
  • 1 answers

Vrushab Warude 6 years ago

Derivations toh almost 30+ heh aur imp bhi boht heh specially derivations of magnetism and lens maver formula
  • 1 answers

Riya Rana 6 years ago

The region where the incoming voltage fluctuates above the break down voltage then zener diode pass heavy current and high voltage this is it..
  • 1 answers

Rajat Barwar 6 years ago

Its the measure of the effectiveness of the rectifier.....it is the ratio of a.c.(rms) to d.c. value. But thus is not given in ncert. Hope it may help u...
  • 0 answers
  • 2 answers

Pushkar Gupta 6 years ago

No all sets are same in 2018

Killer Xmarty 6 years ago

Ok
  • 2 answers

Killer Xmarty 6 years ago

??

Navneet Gupta 6 years ago

Tmkoc
  • 5 answers

Gaihem Kamei 6 years ago

Yes there is..say jai hanuman?

Santosh Kumari 6 years ago

No

Pooja Rawat 6 years ago

Amrit r u from paschim vihar

Pooja Rawat 6 years ago

No

Vashu Yadav 6 years ago

No
  • 5 answers

Tamanna Sharma 6 years ago

It's a theory regarding time traveling which was proven false with this example of grandfather and grandson

Vashu Yadav 6 years ago

Tamana ye kya tha

Tamanna Sharma 6 years ago

And by the way mayank, physics me ye law kabse puchne lage.???

Tamanna Sharma 6 years ago

It's just a state of thinking of mind that we travel in time back but this cannot be possible at all. ( you goes into the past you kill your grandfather ~ ultimately your father not exsist ~ ultimately you not exsist ) which is impossible at any cost ,so this is only a imaginative thing for us to built up a another world in our mind.

Tevar Jaat 6 years ago

It is not in syllabus
  • 3 answers

Killer Xmarty 6 years ago

Yesss

Aashina Rahman 6 years ago

Law of malus is there but dooppler effect is not there

Muskaan Vig 6 years ago

Law of malus is in our syllabus but doppler effect not ...
  • 1 answers

Muskaan Vig 6 years ago

No it is not in our syllabus...
  • 3 answers

Nikita Beniwal 6 years ago

With increasing current in 1 ring current will be in opposite direction in ring 2

Riya Rana 6 years ago

Without the diagram ...

Tamanna Sharma 6 years ago

Chelsi ,current ki direction to batao matlab upward increasing or downward, tabhi to induced current ki direction bata sakte he. I think in this question there is a diagram given to you which represents this situation but unluckily we don't ??draw diagram here, so try this question by using lenz's law.
  • 4 answers

Tapan Pandey?? 6 years ago

? adi is right, and alot of logical questions were their

Adi Kumar 6 years ago

Numerical 10 to 15 marks Derivation 20 to 25

Riya Rana 6 years ago

??

Tamanna Sharma 6 years ago

Paper me jake khud dekh lena , dude sample papers karke abhi tak pta nahi chala
  • 1 answers

Adi Kumar 6 years ago

10 to 15 marks
  • 4 answers

Muskaan Vig 6 years ago

No, it is not necessary where electric field is zero potential also be zero.....Eg.potential become zero b/w equal and opposite charges but electric field does not ......

Tamanna Sharma 6 years ago

E=dV/dr by tis relation if E=o, then potential must be constant (means critical points max and min of a graphical representation)

Anvi Vjbv 6 years ago

Not always necessary

Mohan Singh 6 years ago

Yes
  • 2 answers

Anvi Vjbv 6 years ago

Not always necessary as V=3/2KQ/r at centre of hollow sphere but electric firld is 0

Mohan Singh 6 years ago

Yes
  • 1 answers

Tamanna Sharma 6 years ago

Ge resistivity increase and Ag decrease
  • 1 answers

Honey Patel 6 years ago

If u r getting 20 plus in internal then try to score 20 plus in 70 marks paper u will be easily pass
  • 1 answers

Shruti Jha 6 years ago

Check it on cbse site. It's there!
  • 1 answers

Avantika Tayal 6 years ago

c/v=lambda1/lambda2=sini/sinr=refractive index. Light from a distant source produces a planar wavefront. The light bends when enter from one medium to another

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