Recently Active Questions

The mass of a body id 5kg and its acceleration is 4m/s2 a) 30N b) 20N c) 40N d) None of these ...

...

The co-ordination number in hcp and ccp type of metallic crystals is a) 4 b) 8 c) 12 d) 6 ...

Ratio of the SI to the CGS unit of force is a) 105 : 1 b) 1 : 105 c) 103 : 1 d) None of these ...

Force is also defined as the product of a) Mass and velocity b) Velocity and Acceleration c) Mass and acceleration d) None ...

A body of mass 2 kg is moving with a velocity 8 m/s on a smooth surface. If it is to be brought to rest in 4 seconds, then the force to be applied is a) 8N b) 4N c) 2N d) 1N ...

The range of f(x)=cos (x/3) is a) [-1/3,,,1/3] b) [,-3,,3] c) [1/3,,,-1/3] d) [– 1, 1] ...

The area of a square of side (2x − ay + 3) is A(x) + a2y2 + 2y (2x + 3), where A(x) is a polynomial in the variable x. What is the value of the constant a? Plz tell how to obtain the answer ...

1. *Image* 2. *Image* 3. *Image* 4. *Image* 5. *Image* 6. *Image* ...

The relation R defined on the set A = {1, 2, 3, 4, 5} by R = {(x, y) : |{x^2} - {y^2}| < 16} is given by a) {(1, 1), (2, 1), (3, 1), (4, 1), (2, 3)} b) {(2, 2), (3, 2), (4, 2), (2, 4)} c) {(3, 3), (3, 4), (5, 4), (4, 3), ( ...

How to calculate inclination angle when both x as well as y coordinates of the target is given (in projectile motion)? (as well as initial velocity) ...

Solve: 41x +17y = 58 82x + 34y = 82 a) x = 1, y = 1 b) x = 1, y = 0 c) No solution d) Infinite solutions ...

The period of the function f(x)=|sin x|+|cos x| is a) pi b) pi /2 c) 2pi d) None of these ...

Given the mean (30), the mode (35). What is the median? 30 31.67 40 55.7 ...

A line has slope = 3 and passes through (1,1). What is the equation of the line? a) y = x + 3 b) x = y + 3 c) y = 3x -2 d) x = 3y - 2 ...

The solution of the equation {log _7}{log _5}(sqrt {{x^2} + 5 + x} ) = 0 a) x = 2 b) x = 3 c) x = 4 d) x = - 2 ...

*Image* ...

Find the domain of the following fu *Image* nctions : ...

The value of sqrt {(log _{0.5}^24)} is a) –2 b) sqrt {( - 4)} c) 2 d) None of these ...

*Image* ...

Find the common area of the regions x2+y2≤100 and sin(x+y)>0. ...

If the two equations are such that y = m1x + c1 and y = m2x + c2 and if m1 = m2, then a) the two equations have a unique solution b) the two equations have no solution c) the two equations have infinite no. of solutions d) No ...

A hammer of mass 1kg falls freely from a height of 2 m .Calculate The velocity a) 5.96 b) 6.26 c) 1.234 d) none ...

A person is jumping and another person is in a helicopter just vertically above that jumping man. Then according to the man in the helicopter the jumping man is in a) rest b) motion c) both d) none ...

A CHAIN CONSISTING OF 5 LINKS OF MASS 0.1 KG IS LIFTED VERTICALLY WITH A CONSTANT ACCELERATION OF 2.4 m/s^2 .THE FORCE OF INTERACTION BETWEEN THE TOP LINK AND LINK IMMEDIATELY BELOW IT WILL BE :- 1) 6.15 N 2) 4.92 N 3) 9.84 N ...

A uniform chain of mass m hangs from a light pulley,with unequal lengths of the chain hanging from the two sides of the pulley.The force exerted by the moving chain on the pulley is (a)mg (b)>mg (c)<mg (d)either (b) or ...

A winter resort in the Himalayas took a poll of its 350 visitors to see which adventure sport was most loved.The results of the poll were as follows. 2 liked all three 15 people liked skiing and ice skating 49 people liked to ...

no. of solns. of 2cos x =|sin x| in[-2Ï€,5Ï€] ...

Three concentric metallic spheres A, B and C have radii a, b and c (a<b<c) and surface charge densities on them are sigma ,,-sigma and sigma respectively. The valves of {{V}_{A}} and {{V}_{B}} will be *Image* a) frac{si ...

Find area of given figure ...