NCERT | VOCABULARY - L8 | Hindi Medium | English Medium | Class6-12 | RUBENA Ma'am | 3PM | Doubtnut

12 PM Special Class | Class 11 - STRUCTURE OF ATOM || BOHR MODEL By Yakshu Ma'am

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L3 English Medium

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

In a class of 50 students, 23 speak English, 15 speak Hindi and 18 speak Punjabi. 3 speak only English and Hindi, 6 speak only Hindi and Punjabi and 6 speak only English and Punjabi. If 9 speak only English, then how many speak all the three? (a) 1 (b) 2 (c) 3 (d) 5

Translate the following statement into symbolic into symbolic from. (i) Rahul passed in Hindi and English. (ii) x and y are even integers. (iii) 2, 3 and 6 are factors of 12. (iv) Either x or x + 1 is an odd integer. (v) A number is either divisible by 2 or 3. (vi) Either x= 2 or x = 3 is a root of 3x^(2) - x - 10= 0 (vii) Students can take Hindi or English as an optional paper.

In a state with a population of 75 x 10^6, 45% of them know Hindi, 22% know English, 18% know Sanskrit, 12% know. Hindi and English, 8% know English and Sanskrit, 10% know Hindi and Sanskrit and 5% known all the three languages What is the number of people who do not know any of the above three languages? What is the number of people who know only Hindi . What is the number of people who know only Sanskrit? What is the number of people who know only English? What is the number of people who know only one language? What is the number of people who know only two languages?

study the following information carefully and answer the questions given below it. An exhibition is open for pubic since 9 am till 3 pm and again since 4 pm till 10 pm in a day. There are 12 batches of 1 hour each. The entry ticket bears a pass code made up of seven words, which changes every hour following a particular rule. The pass codes for 4 pm to 10 pm are same as those for respective hours during 9 am to 3 pm i.e., the pass code for 4 pm to 5 pm is same as that of 9 am to 10 am and so on. Following is an illustration of the code and steps of rearrangement for subsequent clock hours. First batch : 9 am to 10 am (4 pm to 5 pm) Pass code : dig more and you will find water Second batch : 10 am to 11 am (5 pm to 6 pm) Pass code : and dig find you water will more Third batch : 11 am to 12 noon (6 pm to 7 pm) Pass code : find and will you more water dig and so on. If the pass code for 5 pm to 6 pm is 'out in above over the field end', what will be the pass code for 1 pm to 2 pm ?

Let the x-z plane be the boundary between two transparent media. Medium 1 in zge0 has a refractive index of sqrt2 and medium 2 with zlt0 has a refractive index of sqrt3 . A ray of light in medium 1 given by the vector vecA=6sqrt3hati+8sqrt3hatj-10hatk is incident on the plane of separation. The angle of refraction in medium 2 is: