what wavelength photon is required to excite a hydrogen atom from the 

Question listing of Math, Physics, chemical science, English, political science, Biology, EVS, Folklore, Psychology, accountancy, economic science and science for CBSE ICSE SSC SSLC boards - Dated: 2018-06-12

five1 Which of the following rational numbers have terminating decimal representation? [1] 3/5 [2] 3/13 [3] 40/27 [4] 23/7 2 2 How many rational numbers can exist plant between two distinct rational numbers? (i)Ii (two) X (iii) Zero (iv) Space iii The value of (two+√three )( 2-√iii ) is (i)1 (two)-i (iii) 2 (iv) none of these 4 (27)-ii/3 is equal to _____ (i) 9 (ii) i/9 (three) 3 (iv) none of these 5 Simplify: iii√2 x iv√ three 6 Find the two rational numbers betwixt ½ and i/iii 7 Notice 2 irrational numbers betwixt 2 and 3 viii Multiply √5 by half-dozen √2 ix Limited 0 8888… in the class p/q 10 Simply past rationalizing denominator,( seven + 3√v) / (7- 3√five) 11 Simplify { ( 625-1/two)-1/iv}2 12 Visualize 3 76 on the line using successive magnification 13 If ten = 1 - √2 , observe the value of ( 10 – 1/x)3 14 Carve up 12√15 by 4√3 xv Correspond in rational form 1 23 16 Simplify by combining similar terms, 23√twoscore + 3 3√625 - 43√320 17 If x = 1/ (2- √iii) , find the value of x3 – ii x2 – 7x + five 18 Bear witness that , one/( one+ √2) + ane/ (√2 + √three ) + 1/ (√3 + √four) + ……… + one/ (√viii +√9 ) = 2 20 Observe the value of x if ( 2/3 )x (3/2)2x = 81/sixteen 21 If a = two and b= iii , find the values of ( ab + ba ) – ane 22 Simplify , iv√ three√ x2 23 Simplify , [ (25)iii/2 x (243)3/5] / [ ( 16)v/four x ( 8) 4/three ] 24 Which of the expressions are polynomials, x3 – 5x + 2 (b) y2 + √two y -√5 (c) z + five/z + one (d) two√x + seven 25 Give the coefficient of x in √3 - two√2x + 4 x2 26 Verify that 4 is a zero of the polynomial p(x) = x – iv 27 Discover the residual when f(x) = 12x3 – 13x2 – 5x + vii is divided by ( 3x + 2 ) 28 If the polynomial ( 2x3 + ax2 + 3x – 5 ) and ( x3+ x2 – 2x + a ) leave the same reminder when divided by ( ten-2 ), find the value of a As well detect the remainder in each case 29 Testify that ( x- 3 ) is a factor of the polynomial , f(x) = x3+x2-17x + xv 30 detect the value of k for which (10-4 ) is a factor of ( 2x3-3x2 – 18 x + k) 31 Factorise , (a) x2 + 9x + 18 (b) 6x2 + 7x + 3 32 Factorise x3 – 6x2 + 3x + 10 33 Factorise iv√3 x2 + 5x - 2√3 34 Factorise v(3x +y)ii + 6( 4x +y) – viii 35 Aggrandize , ( 3a – 5b – c )2 36 Evaluate (997 )2 37 Factorise 2x2 + y2 + 8z2 - 2√two xy + 4√ii yz – viii xz 38 Factorise , 8a3 – 27 b3 39 Factorise ( 2x + 3y )three – (2x – 3y)iii 40 Factorise , a3 – 8b3 – 64c3 + 24 abc 41 Factorize (p-q)3 + (q-r)iii + (r - p)iii 42 If x2 + 1/x2 = 18 , detect the value of x3 + ane/x3 43 If 10 – y = 5 and xy = -6 , find the value of x3 – y3 44 Without actual calculating the cubes evaluate , 283 + ( - xv )three + ( - 13 )iii 45 What are the possible expression for the dimensions of a cuboid whose volume is 12ky2 + 8ky – xx grand ? 46 If 3x +y+z = 0 , show that 27 x3 + y3 + z3 = 9xyz 47 Factorise , 2 x2 - x + 1/8 48 Factorise x6 – y6 49 The sum of 0 3 and 0 4 is (a) 7/11 (b) 7/10 (c) seven/9 (d) xi/ fifteen 50 Represent √ix 3 on the existent number line

109Q no2

208Q vii

36421st

459all questions Topic: Number Series Q Choose the correct alternative to complete the serial: 1, 7, 9, 13, 21, ? (A) thirty (B) 32 (C) 35 (D) 37 2 34, 32, 37, 35, 40, ? (A) 24 (B) 27 (C) 36 (D) 38 three 2, 5, 12, 27, 58, , 248 (A) 111 (B) 121 (C) 122 (D) 125 4 0 five, 0 55, 0 65, 0 8, ? (A) 0 7 (B) 0 9 (C) 0 95 (D) 1

5721 Calculate Current Ratio of a visitor from the following information the intormation Inventory Turnover Ratio 4 Times Inventory Turnover in the beginning was 20,000 less than Inventory at the end Acquirement from Operations Rs 6,00,000 Gross Profit Ratio 25% Current Liabilities Rs 60,000 Quick Ratio 0 75 : 1 2 Calculate Return on Investment and Debt to Equity RAtio from the post-obit information: Internet Profit later on Interest and Revenue enhancement Rs 3,00,000 x% Debentures Rs 5,00,000 Tax Rate 40% Capital Employed Rs 40,00,000

57921st

60926th

661Q5

790two  A dice is thrown is 25 times and the numbers actualization were given below:ii,1,4,six,ii,3,i,five,half-dozen,3,4,5,two,1,half dozen,6,6,3,2,2,ii,iv,iii,2,2Construct a frequency distrubution table to represent this data

79427th

825Solve

85135th

853Q If @ represents 5 Students, and then represent 15 students with the help of symbol @ Q A die is thrown is 25 times and the numbers appearing were given below ii,1,iv,6,2,3,1,five,6,iii,four,v,2,one,6,half dozen,6,iii,two,2,2,iv,3,ii,ii Construct a frequency distribution table to represent this data Q The number of children in 25 families of a colony are given below: 2,0,two,four,two,i, 3, 3, 1, 0, 2,3,4,3,one,1,ane, ii,two,3,2,4, i,2,2 Represent this data in the form of a frequency distribution table Q A die was thrown 20 times and the following data was recorded: 2,3,5,2,3,one,2,1,four,6,half-dozen,2,1,2,3,3,2,1,6,iv Stand for this data in the class of a frequency distribution table

86938th

87840th

960Q3

991Q5

1198Solve:

1203Solve:

1211Solve:

1213Solve this: Q  thirteen  On April Ist 2003, an existing firm had assets of Rs 5,00,000  including cash  of Rs 20,000 the firm had a Reserve Fund of Rs90,000  partner s capital accounts  showed a balance of Rs3,eighty,000 and creditors amounted to Rs 30,000  If the normal rate  of return is twenty% and the goodwill of the firm is valued at  Rs64,000 at iv year south buy  of super profit, find the average profits of the firm   [Ans  0,ten,000 ]

122937th

123339th

1245Solve:

126449th

1295I desire this breaf Answers of give-and-take problems on Arthimatic operations Q3 The population of a city is 12539784, out of which 5874123 are males Detect the population of females in that urban center Q4 A petrol bunk has v 24, 160 litres of petrol If 520 litres of petrol is sold every hr so how many days volition the stock concluding (Hint: First notice the amount of petrol sold in a twenty-four hour period Presume that the petrol bunk functions 24 hours ) Q5 The income of a person for five sequent years is Rs i,89,560, Rs 2,85,612 Rs 4,12,356, Rs 789,451 and Rs viii,75,640 respectively In the v years, the person saved Rs v,89,124 Discover the amount spent in five years (Hint: Add together the income for v years then decrease the saved amount ) Q6 A company manufactures 12, 546 bolts in a mean solar day How many bolts would it industry in the month of February assuming the year as a not-bound year? Q7 Detect the deviation between the greatest and the smallest numbers that can be formed using the digits 4, 0, 2, 5, 7, 6 and 8 only once

1298Sums11

1432Q4

1565Solve

1569Find the median of the following distribution 10 ten,12,14,xvi,18,twenty F iii,5,6,4,4,three

1679Urgent

1736If I=∫-aaα sin5x+β tan3x+γ cos xdx, where α, β, γ are constants, then the value depends on (1) γ, a (2) α, β, γ, a (3) α, β, a (iv) β

1795solve

1812solve

1895Q1 ex2

1899No 17

192531

1943solve

1953Q5

1956Q36 ?

1963Q17

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Source: https://www.meritnation.com/ask-answer/lists/2018-06-12

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