At \(27^{o}C\) the ratio of the R.M.S. velocities of ozone and oxygen molecules is
(A) \(\sqrt{\frac{3}{5}}\)
(B) \(\sqrt{\frac{1}{4}}\)
(C) \(\sqrt{\frac{4}{3}}\)
(D) \(\sqrt{\frac{2}{3}}\)

sqrt100frac(1)(4) is equal to

Add the following: 3frac{1}{13} + 1frac{4}{13} + 2frac{3}{13}

Find the value of : (2frac{2}{3}).(2frac{1}{5})

Find the value of the greatest term in the expansion of sqrt3(1+frac{1}{sqrt3})^20 .

The area of the circle with radius y is w. THe difference between the area of the bigger circle (Wit radius y) and that of smaller circle (with radius x) is w' So,frac(X)(y) is equal to (A) sqrt(1-frac(w')(w) (B) sqrt(1+frac(W')(w) (C) sqrt(1-frac(w)(w') (D) sqrt(1+frac(W)(w')

The value of tan 45^@ (A) sqrt3 (b) frac(sqrt3)(2) (C) frac(1)(sqrt3) (D) 1

What is the value of cot45^@ + frac(1)(3) cosec60^@ ? (A) sqrt3 + 2 (B) frac(9 + 2sqrt3)(9) (C) sqrt3 (D) frac(2sqrt2 +3) (sqrt6)

Which one among the following is the largest? (A) frac(7)(9) (B) frac(11)(14) (C ) frac(3)(4) (D) frac(10)(13)

If 4sin theta - 3cos theta=0 , then sec theta cosce theta is (A) frac(5)(12) (B) frac(25)(12) (C ) frac(13)(12) (D) frac(12)(5)

What is the value of 2 sec 45^@+tan30^@ ? (A) frac((2sqrt6+1))(sqrt3) (B) sqrt3 (C) frac((2sqrt2+3))(sqrt6) (D) frac((9+2sqrt3))(9)