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Subject: Science, asked 2 hours, 23 minutes ago

27. In the determination of focal length of a convex lens, image of grill of a window is formed on a screen. The index mark of screen holder is 37-5 cm and that of lens holder is 16-2 cm. The distance of grill from the lens is 2-5 m. Focal length of lens is

(a) 25 m

(b) 37-5 cm

(c) 162 cm

(d) 21-3 cm

Subject: Science, asked 11 hours, 56 minutes ago

Are all displacement reactions Exothermic and Redox? Justify

Subject: Maths, asked 12 hours, 31 minutes ago

9x2-9(a+b)x+(2a2+5ab+2b2)=0 by factorization method

Subject: Science, asked 12 hours, 52 minutes ago

The refractive index of diamond is 2.47 and that of glass is 1.51. How much faster does light travel in glass than in diamond?

Subject: Maths, asked 14 hours, 1 minute ago

How to solve it .explain it

Abc
Subject: Hindi, asked 14 hours, 3 minutes ago

Character discription of Harihar Kaka's Brothers

Subject: Maths, asked 14 hours, 6 minutes ago

2?5+3?7. This is my question as its my holiday homework question of maths but i think that in{+} there should be {?}.

Subject: Science, asked 14 hours, 43 minutes ago

What is h2o explain

Subject: Maths, asked 15 hours, 8 minutes ago

Plz give me the answer asap

Choose one from option : 1,2,3 and 4

Subject: Science, asked 15 hours, 13 minutes ago

What is the height and range 2 motion

Subject: Science, asked 15 hours, 39 minutes ago

If power of concave lens is same as power of convex lens then when we join both of these lens, what happen ? Please explain

Subject: Maths, asked 15 hours, 54 minutes ago

Factorize the given expression:
27x3?- 63x2?+ 49x -?34327

Subject: Social Science, asked 15 hours, 56 minutes ago

The Tropic of Cancer does not pass through which of the Indian state?

Subject: Maths, asked 16 hours ago

Hello i have a doubt in splitting of middle terms 
for example take 3x2 +13x+4
=3x2+12x+x+4
= 3x(x+4) + 1(x+4)

how did we get 3x(x+4) and 1(x+4)???

Subject: Maths, asked 16 hours, 9 minutes ago

Square root of 4.36 and 9.8( step by step)

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