JEE 2021 | सरल रेखा में गति - L15 | Class 11 भौतिक विज्ञान | Hindi Medium | Ravindra Sir | 11 AM

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

गति का परिचय |गति का वर्णन |सरल रेखा में गति |भौतिक राशियाँ |दूरी |विस्थापन |दूरी व विस्थापन |Summary

गति का परिचय |गति का वर्णन |सरल रेखा में गति |भौतिक राशियाँ |दूरी |विस्थापन |दूरी व विस्थापन |Summary

चाल तथा वेग में अंतर | Speed And Velocity - Explained In Hindi | Class 11 Physics

Due to a point isotropic sonic source, loudness at a point is L = 40 dB. If density of air is r = 15//11 kg m^(-3) and velocity of sound in air, u = 330 ms^(-1) , calculate. (i) pressure oscillation amplitude at the point of observation, and (ii) ratio oscillation amplitude of particle of medium to wavelength of sonic waves.

The students of a class are offered three languages (Hindi, English and French). 15 students learn all the three languages whereas 28 students do not learn any language. The number of students learning Hindi and English but not French is twice the number of students learning Hindi French but not English. The number of students learning English and French but not Hindi is thrice the number of students learning Hindi and French but not English. 23 students learn only Hindi and 17 students learn only English. The total number of students learning French is 46 and the total number of students learning only French is 11. What is the total strength of the class?

The Students of a class are offered three language (Hindi. English and French). 15 students learn all the three language whereas 28 students do not learn any language. The number of students learning Hindi and English but not French is twice the number of students learning Hindi and French but not English. The number of students learning English and French but not Hindi is thrice the number of students learning Hindi and French but not English. 23 students learn only Hindi and 17 students learn only English. The total number of students learning French is 46 and the total number of students learning only French is 11. What is the total strength of the class?

The students of a class are offered three languages (Hindi, English and French). 15 students learn all the three languages whereas 28 students do not learn any language. The number of students learning Hindi and English but not French is twice the number of students learning Hindi French but not English. The number of students learning English and French but not Hindi is thrice the number of students learning Hindi and French but not English. 23 students learn only Hindi and 17 students learn only English. The total number of students learning French is 46 and the total number of students learning only French is 11. How many students learn precisely two languages?

The students of a class are offered three languages (Hindi, English and French). 15 students learn all the three languages whereas 28 students do not learn any language. The number of students learning Hindi and English but not French is twice the number of students learning Hindi French but not English. The number of students learning English and French but not Hindi is thrice the number of students learning Hindi and French but not English. 23 students learn only Hindi and 17 students learn only English. The total number of students learning French is 46 and the total number of students learning only French is 11. How many students learn at least two languages?