In the angle of the shadow of a 30 m long pool is 10√3m, then the angle elevation of the sun is
In comparison to a 0.01 M solution of glucose, the depression in freezing point of a 0.01 M MgCl2 solution is ________ .
An emulsion consists of
Find the sum and product of the root for the quadratic equation x2+4=0
A tower of 45 cm high costs a shadow of 12 cm, then the angle of elevation of the dun is
Calculate the value of ∫1 (tan-1x/1+x2) dx
The equation of the straight line which passes through the point (-5,4) and is such that the position of it between them is divided by the given point in the ratio 1:2: is_____.
In an examination marks obtain by students in physics, maths and statistics denoted by x,y, and z are normally distributed with means 50,52 and 48 respectively and standard deviation 13,12,16, rape. the distribution of (x+y+x) is_____
The standard reduction potentials at 298K for the following half cells are given below. Find the strongest reducing agent. Zn2+ (aq.) + 2e ↔Zn (s), Ev = - 0.76 V; Cr3+ 3 e ↔Cr(s), Ev = -0.74 V2H+ + 2e ↔ H2 (g), Ev = 0.0 V; Fe3+ + e ↔ Fe2+ (aq.), Ev = 0.77 V
The domain of the defination of the function f(x) given by the euation an+a4=a is____(a>1).
The value of sin34°+cos64°-cos4° is______
y x is normal variate such that mx(t)=e3+8+2,then the varience is
Markovnikov reaction is a
The shape of d orbital is:
20 persons are invited for a party. the number of ways in which they and the host can be seated at a circular table y two partocular person can be seated on either side og the host is qual to
Which of the following ketones has the common term acetone?
What will be the quadratic equation x when the roots have arithmetic mean A and geometric mean B
