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New answer posted

11 months ago

0 Follower 23 Views

A
alok kumar singh

Contributor-Level 10

For uniformly charged spherical shell,

V = k q R (  For rR )

V C = V P

VCVP= Zero 

New answer posted

11 months ago

0 Follower 7 Views

A
alok kumar singh

Contributor-Level 10

In the case for maximum elongation,

Stress = Elastic limit

δ m a x = σ elastic  * L  Young's modulus  = 8 * 1 0 8 * 1 2 * 1 0 1 1 = 4 * 1 0 3

=4 mm

i.e. maximum elongation is 4 mm

New answer posted

11 months ago

0 Follower 8 Views

A
alok kumar singh

Contributor-Level 10

According to transformer ratio,

V S V P = N S N P = 2 : 1

New answer posted

11 months ago

0 Follower 8 Views

A
alok kumar singh

Contributor-Level 10

Excess force  = T * 2 π R

= 7 1 0 0 * 2 * 3 . 1 4 * 4 . 5 1 0 0

= 1 9 7 . 8 2 * 1 0 4

=19.8*103 N

=19.8mN

New answer posted

11 months ago

0 Follower 26 Views

A
alok kumar singh

Contributor-Level 10

Energy difference Δ E = h c λ

λ 1 Δ E

( Δ E ) 6 2 > ( Δ E ) 5 2 > ( Δ E ) 4 2 > ( Δ E ) 3 2

λ 6 2 < λ 5 2 < λ 4 2 < λ 3 2

 A-III,  B-IV,  C-II,  D-I 

 

New answer posted

11 months ago

0 Follower 6 Views

A
alok kumar singh

Contributor-Level 10

Y 1 = A · A ¯

= A ¯

Y 2 = B + B ¯

= B ¯

Y = Y 1 + Y 2 ¯

= A ¯ + B ¯ ¯

= A ¯ ¯ · B ¯ ¯

=A·B is similar to output of AND Gate 

New answer posted

11 months ago

0 Follower 9 Views

A
alok kumar singh

Contributor-Level 10

(A) If c  is the velocity of light

so,   E = h ν   (Energy of photon)

(B) Velocity of photon is equal to velocity of light i.e. c.

(C)  λ = h p

p = h λ

p = h v c

(D) In photon-electron collision both total energy and total momentum are conserved.

New answer posted

11 months ago

0 Follower 2 Views

S
Syed Aquib Ur Rahman

Contributor-Level 10

 For SHM, kinetic and potential energies are equal when displacement x = ± A 2  , where A is the amplitude. At this point, total energy is evenly shared between motion and position-dependent restoring forces.

New answer posted

11 months ago

0 Follower 17 Views

A
alok kumar singh

Contributor-Level 10

At central point on screen, path difference is zero for all wavelength. So, central bright fringe is white and other fringes depend on wavelength as β = λ D d .

Therefore, other fringes will be coloured.

New answer posted

11 months ago

0 Follower 5 Views

A
alok kumar singh

Contributor-Level 10

V . C = M S D V S D     … (i)

given :  (N+1)VSD=NMSD

VSD= (NN+1)MSD     … (ii)

From (1) and (2)

V . C = ( MSD ) N N + 1 ( MSD )

=MSD (1NN+1)=MSDN+1

= 0 . 0 1 N + 1 = 1 1 0 0 ( N + 1 )

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