Physics

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New answer posted

a year ago

0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

e V = Energy of electron

for minimum wavelength, maximum loss of energy

e V = h c λ

λ ∝ 1 V

New answer posted

a year ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

Δ θ = λ d

Δ θ is proportional to λ but independent of D

New answer posted

a year ago

0 Follower 4 Views

R
Raj Pandey

Contributor-Level 9

Speed of light in air is

C = x t 1

Speed of light in another denser medium.

C 2 = 10 x t 2

⇒ μ = C C 2 = x t 1 * t 2 10 x

⇒ μ = t 2 10 t 1

For total internal reflection

s i n ? C = 1 μ

⇒ s i n ? C = 10 t 1 t 2

C = s i n - 1 ? 10 t 1 t 2

New answer posted

a year ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

B = E C = 48 3 * 10 8 = 16 * 10 - 8

= 1.6 * 10 - 7 T

New answer posted

a year ago

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R
Raj Pandey

Contributor-Level 9

Capacitive reactance = 1 ω C = X c (say) on decreasing the operating frequency ω  reduces

As X c is inversely proportional to ω  the value of X c  increase

∴ I C = I D

= V o X c

As X c  increases, therefore displacement current Id decreases.

New answer posted

a year ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

For transformer i p i s = V s V P = N s N P

For bulb, V s = 12 V

i s = 60 12 = 5 A ⇒ i p 5 = 12 220 i P = 60 220 = 3 11 = 0.27 A

New answer posted

a year ago

0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

For resonance frequency

ω L = 1 ω C ⇒ ω = 1 L C = 1 10 * 10 - 3 * 1 * 10 - 6 = 1 10 - 8 = 10 4 r a d / s e c f = ω 2 π = 10 4 2 π = 1.59 k H z

New answer posted

a year ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

Magnetic energy stored in an inductor = 1 2 L I 2

= 1 2 * 4 * 10 - 6 * ( 2 ) 2 = 8 μ J

New answer posted

a year ago

0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

? s B ? ⋅ d A ? = 0 (No monopole exist)

New answer posted

a year ago

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J
Jaya Sharma

Contributor-Level 10

A total refractive prism is also known as a total internal reflection prism. It is an optical prism that is designed for reflecting 100% of the incident light. This happens since this prism uses the principle of total internal reflection. These prisms are oriented and shaped in a specific way so that the light that enters at a specific angle is completely reflected inside the prism. A right-angle prism, porro prism, dove prism and roof prism are some of the examples of total reflective prism. 

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