Explain which one is most accurate measurement?
(a) 2000g,
(b) 2.0
(c) 2.00 kg
(d) 2kg

Which measurement is more precise, 4.0g or 4.00g?

If a , b and c are in A P , then the straight line a x+b y+c=0 will always pass through a fixed point whose coordinates are (a) (1,2) (b) (1,-2) (c) (2,3) (d) (0,0)

Radon-222 has a half-life of 3.8 days. If one starts with 0.064 kg of Radon-222 the quantity of Radon-222 left after 19 days will be - (A) 0.002 kg. (B) 0.062 kg. (C) 0.032 kg. (D) 0.024 kg.

Find the sum of the roots (real or complex) of the equation x^2001 + (1/2-x)^2001=0 . (a) 2000 (b) 2001 (c) 1000 (d) 500

If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one is correct? a) q r=p^2 b) q r=p^2+c/a c) none of these d) either a) or b)

The values of a for which the integral int_0^2|x-a|dxgeq1 is satisfied are (a) (2,oo) (b) (-oo,0) (c) (0,2) (d) none of these

20.0 kg of N_2 (g) and 3.0 kg of H_2 (g) are mixed to produce NH_3 (g) formed is (1) 17 kg (2) 34 kg (3) 20 kg (4) 3 kg (5) 23 kg

If f(x)={(|x|-3 when x = 1) & g(x)={2-|x| when x = 2 . if h(x)=f(x)+g(x) is discontinuous at exactly one point, then - (a). a=-3, b=0 (b). a=-3, b=-1 (c) a=2, b=1 (d) a=0, b=1

Given that log(2)=0. 3010 , the number of digits in the number 2000^(2000) is 6601 (b) 6602 (c) 6603 (d) 6604

Estimate the error made in calcutating the area of the triangle ABC in which the sides a and b are measured accurately as 25 cm and 16cm, while the angle C is measured as 60^(@) but ((1)/(2))^(@) in error.