Recently Active Questions

Arrange in the order of descending bond angle in OF2, OCl2 and OBr2 with proper explanation. ...

The number of ways in which 2 boys can take 4 subjects if each boy takes atleast one subject is? ...

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Let abcd is 4 digit number which satisfy the equation 4*abcd=dcba find the abcd ...

number of 9 digits numbers divisible by 9 using the digits from 0 to 9 if each digit is used atmost once is K.8!, then k has value equal to? ...

in how many ways can the letters of the word CINEMA be arranged so that the order of vowels do not change ...

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Equation of the straight line making equal intercepts on the axes and passing through the point (2, 4) is ...

Show that Δ < s2/4 ...

Can someone tell me, how is the equation of a plane passing through the line of intersection of two planes u = 0 and v = 0 given by, u + ∂v = 0 where, '∂' is a scalar quantity?? ...

Fossil 'X' can be considered to have evolved earlier than fossil 'Y' if fossil (a) 'Y' has vestigial structures that are homologous to functional structures in fossil 'X'. (b) 'Y' is structurally more complex than fossil 'X'. ...

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2 frnds after a long time decided to meet at a particular coffee shop between 5:00 pm to 6:00 pm on a specified day.they also decided that the person whho comes earlier will not wait for the second person for more than 10mins ...

The number of right angled triangles with integer sides and inradius r=2013 is (a) 13 (b) 17 (c) 27 (d) 39 ...

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Arrange {H_2}O,,HC equiv CH,,N{H_3} and C{H_3}C{H_3} in order of acidity ...

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Nine hundred distinct n-digit positive number are to be formed using only the digits 2, 5 & 7. The smallest value of n for which this is possible is (a) 6 (b) 7 (c) 8 (d) 9 ...

A spherical ball of mass m and radius r rolls without slipping on a rough concave surface or large radius R. It makes small oscillations about the lowest point. Find the time period. (H.C. Verma Part-1 S.H.M.-Q. No:39) ...

Why do you think ice occupies more volume than the same mass of water? ...

What happens when a light bulb burns out? ...

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I know something is wrong in the following proofs.Can't figure out which step is wrong. Proof of -1 =1: *Image* Proof of 1=3: *Image* ...

Pressure at a point= hdg where h is height and d is density.Now look at the figure given below. *Image* Here, the pressure is more at point A than the pressure at point B as height of A is more than that of B. So, fluid shoul ...

In a binomial distribution B(n, p=1/4), if the probability of at least one success is greater than or equal to 9/10, then prove that n is greater than 1/(log10 4 - log10 3) ...

a,b ε N. The number of ordered pairs (a,b), a<b such that 1/a + 1/b = 1/2013 is (a) 11 (b) 13 (c) 17 (d) 21 ...