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Physics Important Last min suggestions for class 12 cbse

Multiple Choice Question 1. Which statement is true for Gauss law ? (a) All the charges whether inside or outside the Gaussian surface contribute to the electric flux. (b) Electric flux depends upon the geometry of the Gaussian surface. (c) Gauss theorem can be applied to non-uniform electric field. (d) The electric field over the Gaussian surface remains continuous and uniform at every point. Ans.  (d) The electric field over the Gaussian surface remains continuous and uniform at every point. 2. An electric dipole placed in a non-uniform electric field can experience. (a) a force but not a torque. (b) a torque but not a force. (c) always a force and a torque. (d) neither a force nor a torque. Ans.  (c) always a force and a torque. 3. Some charge is being given to a conductor. then, its potential (a) is maximum at surface. (b) is maximum at centre. (c) remains the same throughout the conductor. (d) is maximum somewhere between surface and centre. Ans.  (c) remains the sam...
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Error Related to pronoun

Error Related to pronoun Question Sheet 1 1.The receptionist asked me (a)/ who do I want (b)/ to meet in the office. (c)/ No error (d)  2. Between you and (a)/ he probably (b)/ he won’t come at all. (c)/ No error (d) 3. I am sorry to have disturbed you (a)/ I hope you will not mind me coming to you (b)/ at this old hour.  (c)/ No error (d)  4. I, you and he (a)/ must offer assistance (a)/ to the down-trodden, said one of (b)/ the boys standing by  him (c)/ No error (d)  5. The ruling party stood (a)/ for implementation of the bill (b)/ and was ready to stake their political  existence. (c)/ No error (d)  6. The audience (a)/ are requested to be (b)/ in its seats. (c)/ No error (d)  7. Last summer (a)/ he went td his uncle’s village (b)/ and he enjoyed very much. (c)/ No error (d)  8. He answered (a)/ more questions (a)/ than me, so he must be (b)/ rewarded some prizes (c)/ No error  (d)  9. Neither of the two children (a)/ said thei...
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Ratio important sums

1. In a school, 10% of the boys are same in number as 1/5th of the girls. What is the ratio of boys to girls in that school? (a) 1:2 (b) 3:4 (c) 3:2 (d) 2:1 (e) NOT 2. A sum of money is distributed among A, B and C such that A get double of C and B get average of A and B. find the ratio in which the money is distributed? (a) 1:1:7 (b) 2:2:1 (c) 1:1:2 (d) 1:2:3 (e) NOT 3. Divide 27 into two parts so that 5 time the first and 11 times the second together equal to 195. Then ratio of the first and second part is: (a) 10:17 (b) 17:10 (c) 10:13 (d) 1:2 (e) 5:7 4. The speed of a boat in still water is 500% more than the speed of the current. What is the respective ratio between the speed of boat downstream and speed of boat upstream? (a) 4:9 (b) 5:7 (c) 5:6 (d) 11:2 (e) 7:5 5. In a class of 75 students, one-fifth of the total number of girls and three- fifth of total number of boys join a cricket club. If the total number of boys joining the club is 27. What is the respective ra...
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