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======= ####77. A radio transmitter operates at a freqency 880 $k H z$ and a power of $10 k W$ . The number of photons emitted per second is

c3eec34ec6b1fad69db54a20ad4b2dca40c2aa54 (a) $1.72 \times 10^{31}$

(b) $1.327 \times 10^{25}$

(d) $1.327 \times 10^{45}$

[1990]

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Answer:

Correct Answer: 77. (a)

Solution:

(a) No. of photons emitted per sec,

$\begin{aligned} n & = \frac{Power}{Energy of photon} \\ = \frac{P}{h v} = \frac{10000}{6.6 \times 10^{- 34} \times 880 \times 10^{3}} \\ = 1.72 \times 10^{31} \end{aligned}$

Dual Nature of Radiation and Matter - Result Question 73

77. A radio transmitter operates at a freqency 880 $k H z$ and a power of $10 k W$ . The number of photons emitted per second is

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Answer:

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Dual Nature of Radiation and Matter - Result Question 73

77. A radio transmitter operates at a freqency 880 kHz and a power of 10kW. The number of photons emitted per second is

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Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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77. A radio transmitter operates at a freqency 880 $k H z$ and a power of $10 k W$ . The number of photons emitted per second is