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a> a fish at a depth d below the water sees a bird flying at a height h above the ground at an apparent distance......??? b> a double convex lens , made of a material of refractive index μ is placed inside two liquids ...
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All of you must have solved or at least tried to solve river-crossing or gorge-crossing riddles, with some conditions, but believe me, this one is really typical... There was a group of two teachers (one male and one female) ...
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a hollow cone is cut by a plane parallel to the base and upper portion is removed. if the curved surface area of the remainder is 8/9 of the curved surface area of the whole cone, find the ratio of the line segments into whic ...
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7+77+777+7777+....+7777.......7(n-digit)= 7/81 (10n+1-9n-10) plzz...help to solve it..i m not getting the L.H.S. equation... ...
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what is the area enclosed within the curve |x|+|y|=1 ? ...
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this question is from co-ordinate geometry... if the straight lines y=4-3x ; ay=x+10 ; 2y+bx+9=0 represent the three consecutive sides of a rectangle then what is the value of ab? plz show the work out as well thnx in advance ...
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can anyone express 179 in the given form- ab+ba.... condition- a and b are natural numbers...plzz...don't apply any complicated maths in it...do it in a simple way... thnks in advance for abiding the given conditions.... ...
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there is a city..which is full of thieves....john wants to send a ring to mary...but since the city is full of thieves..so he put the ring in a box...and put a lock on it...if he sends this to mary...mary cannot open it since ...
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an electric bulb rated 50W at 100V is used in a circuit having a 200V supply. What resistance R must be put in series with the bulb so that then bulb delivers 500W? ...
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*Image* what is the resistance between A and B in the network shown..?? ...
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two point charges +4q and+q are placed at a distance L apart. a third charged particle is so placed that all the three charges are in equilibrium. find the location, magnitude and nature of third charge. ...
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can u explain this..hw did dis come..???.. ...
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two masses A and B of 10kg and 5kg respectively are connected with a string passing over a frictionless pulley fixed at the corner of a table as shown. The coefficient of static friction of A with the table is 0.2. The minimu ...
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1. a) analogous organs indicate ---------- evolution. b) --------were functional in ancestors but are rudimentary in modern descendants. 2.under which category does it lies..??? homologous or analogous..??? a) potato and runn ...
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so...lets see who can apply d best logic.... prove that- " A dumb cat always falls while walking"...... ...
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when the gametes fuse to form the zygote...both the male n the female gametes, they contribute half the genetic material...do they contribute half their chromosomes..???....i don't think so...n if they do not contribute then ...
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i m confused with the order of the outer layers of the eyes... SCLERA CORNEA CONJUNCTIVA... which 1 comes the first...can some1 arrange it inn right order... thnks in advance... :) ...
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what is the function of the androgen that is being secreted by the "leydig cells"?? ...
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the lacrimal glands in our eyes...secrete a lubricating liquid each time we blink our eyes...one reason for the nessecity of this fluid is that it keeps our eyes moist...so..why do we require to keep our eyes moist..???? ...
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the number of terms in an AP is even. the sum of the odd and the even numbered terms are 24 and 30 resp. if the last term exceeds the first by 10.5,the no.of terms in the AP are..????? ...
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the image is reversed but i hope u can understand... *Image* two masses A and B of 10kg and 5kg respectively are connected with a string passing over a frictionless pulley fixed at the corner of a table as shown. The coeffici ...
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to get pure aluminium we use the process "electrolysis refining" or hoope's electrolysis....can some1 plain it to me...its quite confusing.... ...
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What is the core difference between "brazing" and "soldering"..??? They are almost the same processes... ...
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150 workers were engaged to finish a piece of work in a certain no. of days. four workers dropped the second day, 4 more workers dropped the third day and so on.....it takes 8 more days to finish the work now.. find the no. o ...
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y do v feel sleepy after a heavy diet...??? ...
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4 persons r selected at random out of 3 men , 2 women, and 4 children. The probability that there r exactly 2 children in the selection is..??? ...
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the amount of water contained in a sphere o9f radius 3cm is pour into a cube of 5cm . the height up to which water will rise i the cube is.... a)2 cm b)3Ï€/4 cm c)0.5Ï€ cm d)1.44Ï€ cm pllzzz the workout as well.. thanku... ...
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a wire of length 25cm is bent so as to lie along the arc of a circle of did 100cm. the angle subtended at the centre by the arc is....????? a)Ï€ b)Ï€/2 3)Ï€/4 d)Ï€/8 plzz...show that how u arrived at that answer.... thanks in ...
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the maximum sum of the series 20+19 1/3 +18 2/3 +18+...is...?? how 2 find it....??? ...
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if a1,a2,........,an+1 arev in ap,then 1/a1a2 + 1/a2a3 +...... 1/anan+1 is.....?????? ...
