Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

Assuming that a 25 watts bulb emits monochromatic yellow light of wavelength 0.57 μ. The rate of emission of quanta per sec. will be

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

5.89  ×  1015  sec−1

b

7.28  ×  1017  sec−1

c

5  ×  1010  sec−1

d

7.18  ×  10-19  sec−1

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

Let n quanta are evolved per secnhcλ=25  J  sec−1 (1watt = 1 J/sec) n 6.626  × 10−34× 3 ×108  0.57 × 10−6=25n=7.18  ×  10−19  sec−1
Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring