Question
Download Solution PDFएक 100 W वाले प्रकाश बल्ब के लगभग 10% शक्ति को दृश्य विकिरण में परिवर्तित किया जाता है। तो दृश्य विकिरण की औसत तीव्रता क्या है?
(a) बल्ब से 2m की दूरी पर?
(b) 5 m की दूरी पर?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
दृश्य विकिरण की तीव्रता प्रति इकाई समय, प्रति इकाई क्षेत्रफल उत्सर्जित दृश्य प्रकाश की मात्रा होती है।
\(I = \frac{P}{4\pi r^2}\)
जहाँ P स्रोत की शक्ति है, Pi == दृश्य विकिरण की शक्ति, और r विकिरण के स्रोत से दूरी है।
गणना:
P का 10% = Pi
\(⇒ \frac{10}{100}\times 100 = 10 = P_i\)
⇒ Pi = 10 W
a) दिया गया है r = 2 m
\(I = \frac{P_i}{4\pi r^2}\)
\(⇒I = \frac{10}{4\pi 2^2}\)
⇒ I = 0.19 Watt/m2
b) r = 5m
\(⇒I = \frac{10}{4\pi 5^2}\)
\(⇒I = 0.0318\ W/m^2\)
अतः उत्तर विकल्प (1) है।
Last updated on May 26, 2025
-> AAI ATC exam date 2025 will be notified soon.
-> AAI JE ATC recruitment 2025 application form has been released at the official website. The last date to apply for AAI ATC recruitment 2025 is May 24, 2025.
-> AAI JE ATC 2025 notification is released on 4th April 2025, along with the details of application dates, eligibility, and selection process.
-> Total number of 309 vacancies are announced for the AAI JE ATC 2025 recruitment.
-> This exam is going to be conducted for the post of Junior Executive (Air Traffic Control) in Airports Authority of India (AAI).
-> The Selection of the candidates is based on the Computer Based Test, Voice Test and Test for consumption of Psychoactive Substances.
-> The AAI JE ATC Salary 2025 will be in the pay scale of Rs 40,000-3%-1,40,000 (E-1).
-> Candidates can check the AAI JE ATC Previous Year Papers to check the difficulty level of the exam.
-> Applicants can also attend the AAI JE ATC Test Series which helps in the preparation.