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In Test 502 of class 8, I got only one question wrong.The instructions said that +3 is for correct response and -1 for a wrong response.However I got 31 out of 40.How? ...
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The common factors of the terms 6ab2, 4b3, and 2a2b2 are 4, a, b 2, a, b2 3, a, b2 2, b, b Your Answer d Correct Answer b if there is no 'a' in the 2nd term then how can the answer be 2,a,b2? ...
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shadow is formed by ______________ objects transparent translucent both of them none of these Your Answer b Correct Answer d How can the answer be none of them ? Transculent objects form a light shadow and transparent objects ...
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Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a and b Your Answer Not Attempted Correct Answer c how can 0.112473 lie between the given nos.? and please give the right answe ...
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Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a and b Your Answer Not Attempted Correct Answer c since the option b and c are same which will the right answer?and what will ...
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An atom of one element A has four elements in its outermost shell, and that of B has six electrons in the outermost shell. The formula of the compound formed by these two will be A2B AB2 A2B3 A3B2 Your Answer d Correct Answer ...
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3)Calculate the current in a wire if 900 C of charge passes through it in 10 minutes. 2A 5A 10A None of these Your Answer d Correct Answer b A=C/t HERE C=900C AND t= 10*60s THEREFORE A=900/600A =1.5A THEN HOW MY ANSWER IS WRO ...
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10)A galvanometer can be converted into an ammeter by connecting a high resistance in series connecting a low resistance in parallel connecting a low resistance in series \connecting a high resistance in parallel Your Answer ...
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If 1021 molecules are removed from 200 mg of CO2 then the number of moles of CO2 left is 2.88 x 10-3 1.66 x 10-3 4.54 x 10-3 1.66 x 10-2 Your Answer Not Attempted Correct Answer a please show me the calculation. ...
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2)0.001 g of C is required to write a letter with a graphite pencil. The total number of C atoms used in writing the letter is 5 x 1012 5 x 1019 5 x 1024 1 x 1020 Your Answer Not Attempted Correct Answer b please show me the ...
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The planet which has maximum presence of gas in our solar system is a) Jupiter b) Mars c) Saturn d) None of them ...
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24)Which of the following statements is/are true regarding cell structure? (i) The nucleoplasm and the cytoplasm together make up the protoplasm (ii) Chloroplasts are type of plastids, which occur in plant cells (iii) In many ...
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The circumference of the front wheel of a cart is 30 ft long and that of the back wheel is 36 ft long. What is the distance traveled by the cart, when the front wheel has done five more revolutions than the rear wheel? 750Ï€ ...
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The fractional representation of the no 11.457 11343/990 11457/1000 1138/999 11343/999 Your Answer a Correct Answer d HOW? 25)Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a ...
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If 9/10 of an iceberg is underwater what is the density of ice ? 9 gm per cc 900 kg per m^3 Both a and b 9 Kg per m^3 Your Answer b Correct Answer c How 9g/cc =900kg/m^3? ...
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Image formed by a convex mirror is real virtual magnified B & C Your Answer b Correct Answer d Image formed by a convex mirror is always virtual,erect and diminished then why the answer is virtual and magnified?(option d) ...
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Which of the following is not the characteristic of the image formed by the pinhole camera? real Virtual erect B & D Your Answer c Correct Answer b THE CHARACTERISTICS OF A PINHOLE CAMERA STATES THAT THE IMAGE IS REAL,INVERTE ...
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for light to reflect obeying the laws of refection the surface must be smooth rough neither smooth nor rough any surface would do Your Answer d Correct Answer a BOTH IN SMOOTH AND ROUGH SURFACES LAWS OF REFLECTION ARE OBEYED ...
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If ultrasonic, infrasonic and audio waves travel through a medium with speed v1 v2 and v3 respectively, then v1 = v2 = v3 v1 > v3 > v2 v1 < v3 < v2 v3 ≤ v1 and v1= v3 Your Answer b Correct Answer a 3 WAVES HAVE ...
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A certain amount of money is to be divided between A and B in the ratio 3:1.But because of a miscalculation A received 1/14 of the total money additionally. Find the ratio in which they divided the money. 5:2 14:9 23:5 None Y ...
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How many images will be formed when two mirrors are kept perpendicular?? 5 7 2 3 Your Answer d Correct Answer b how it is possible?MY WAS 3. 8)Find the distance traveled by light in 0.01 seconds in km 3X10^5 3X10^10 3X10^7 3X ...
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Find the HCF of 2/3,4/6,8/27 Your Answer Not Attempted Correct Answer a a.2/27 how it is possible?the answer should be 1/27,and what about my marks? ...
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What is PET in pet bottles ? Pet as in animal,because the bottle is easy to carry Poly ethene three Poly ethene Tetrapthalate None of thse Your Answer c Correct Answer b HOW IT IS POSSIBLE? ...
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Which is not related with silk industry sericulture moriculture apiculture reeling Your Answer c Correct Answer d HOW IT IS POSSIBLE WHEN REELING IS RELATED TO SILK INDUSTRY? ...
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Speed of light in air or vacuum is (in cm/s) 3 X10^8 2 X 10^8 2 X 10^5 3 X 10^10 Your Answer d Correct Answer a HOW IT IS POSSIBLE WHEN IT IS IN CM/S? ...
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HOW CAN THE VELOCITY OF ULTRASOUND, INFRA SOUND AND AUDIO WAVES BE EQUAL? IN THE Q.10 OF THE RECENT CHAKRAVYUH TEST OF CLASS 7 THE OPTIONS O B AND C ARE THE SAME BUT WHY I AM GIVEN WRONG WHEN I PRESS THE OPTION C ? ...
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25)For equation mx + 3 = 7 - x, if x = 4 is the solution, then m = 1 -1 0 4 Your Answer c Correct Answer b Your Score -1 WHY? ...
