Let  f(x) is continuous in  then what will be  ?

Anonymous User Maths Differential Calculus 19 Jun, 2020 50 views

If  then what are the values of a and b?

Anonymous User Maths Differential Calculus 19 Jun, 2020 50 views

Let f(a) = g(a) = k and their nth derivatives fn(a), gn(a) exist and are not equal for some n.

Further if  then what will be the value of k?

Anonymous User Maths Differential Calculus 19 Jun, 2020 55 views

What is the value of ?

Anonymous User Maths Differential Calculus 19 Jun, 2020 50 views

The normal to the curve x = a(cos+  sin), y = a(sin – cos) at any point  is such that

Anonymous User Maths Differential Calculus 19 Jun, 2020 51 views

If f is a real­valued differentiable function satisfying |f(x) - f(y)| <= (x-y)2, x, y R and f(0) = 0, then f(1) equals

Anonymous User Maths Differential Calculus 19 Jun, 2020 60 views

An element crystallise in F.C.C whose crystal density 5.2 gm/cm^3 and limiting length is 300 pm.Calculate number of atoms present in 105.65 gm of an element.

Anonymous User Chemistry Solid State 12 Jun, 2020 85 views

Gold Au(197) crystallises in F.C.C whose crystal density is 19.3 gm/cm^3 .Calculate atomic radius of gold atom.

Anonymous User Chemistry Solid State 12 Jun, 2020 67 views

Li has a bcc structure. its  is 530 kg and its atomic mass is 6.94 g/mol . Calculate length of a unit cell of lithium meta

Anonymous User Chemistry Solid State 12 Jun, 2020 72 views

A man throws balls with the same speed vertically upwards, one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time? (Given g = 9.8 m/s2)

Anonymous User Physics Laws of Motion and Friction 06 Jun, 2020 77 views

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

Anonymous User Physics Laws of Motion and Friction 06 Jun, 2020 230 views

A stone is dropped from a minar of height h and it reaches after t seconds on earth. From the same minar if two stones are thrown (one upwards and other downwards) with the same velocity u and they reach the earth surface after t1 and t2 seconds respectively, then

Anonymous User Physics Laws of Motion and Friction 06 Jun, 2020 209 views

A car is moving with c/2 a stone is thrown from the car with speed c/root 2 at 45 degree with the direction of velocity of the car. What is the angle as seen from the ground?

Anonymous User Physics 06 Jun, 2020 74 views

If f(x + y) = f(x).f(y) x, y and f(5) = 2, f'(0) = 3, then f'(5) is

Anonymous User Maths Differential Calculus 05 Jun, 2020 60 views

The maximum distance from origin of a point on the curve x = a sint – b sin(at/b)

y = a cost – b cos(at/b), both a, b > 0 is

Anonymous User Maths Differential Calculus 05 Jun, 2020 59 views

If f(1) = 1, f'(1) = 2, then what is ?

Anonymous User Maths Differential Calculus 05 Jun, 2020 55 views

f(x) and g(x) are two differentiable function on [0, 2] such that fn(x) - gn(x) = 0, f'(1) = 2g' (1) = 4, f(2) = 3g(2) = 9 then f(x) – g(x) at x = 3/2 is

Anonymous User Maths Differential Calculus 05 Jun, 2020 57 views

f is defined in [–5, 5] as ,

Anonymous User Maths Differential Calculus 05 Jun, 2020 50 views

([x] denotes greatest integer less than or equal to x)

Anonymous User Maths Differential Calculus 05 Jun, 2020 50 views

The first two terms of a geometric progression add up to 12. The sum of the third and the fourth terms is 48. If the terms of the geometric progression are alternately positive and negative, then the first term is

Anonymous User Maths Sequences and Series 05 Jun, 2020 58 views

In a geometric progression consisting of positive terms, each term equals the sum of the next two terms. Then what will be the common ratio of this progression?

Anonymous User Maths Sequences and Series 05 Jun, 2020 57 views

The sum of the series  upto infinity is

Anonymous User Maths Sequences and Series 05 Jun, 2020 59 views

If a1 , a2 , ..., an are in H.P., then the expression a1a2 + a2a3 + ... + an-1an is equal to

Anonymous User Maths Sequences and Series 05 Jun, 2020 59 views

Let a1 , a2 , a3 , ... be terms of an A.P. If  then  equals

Anonymous User Maths Sequences and Series 05 Jun, 2020 51 views

If the function f(x) = 2x3 – 9ax2 + 12a2x + 1, where a > 0, attains its maximum and minumum at p and q respectively such that p2 = q, then a equals?

Anonymous User Maths Differential Calculus 05 Jun, 2020 57 views

If f(x) = xn, then the value of  is

Anonymous User Maths Differential Calculus 05 Jun, 2020 50 views

If  then what is the value of k?

Anonymous User Maths Differential Calculus 05 Jun, 2020 50 views

If 2a+ 3b+ 6c= 0 (a,b,c  R) then the quadratic equation ax2 + bx + c = 0 has

Anonymous User Maths Differential Calculus 05 Jun, 2020 62 views

Let f(2) = 4 and f'(2) = 4 then  equals

Anonymous User Maths Differential Calculus 05 Jun, 2020 50 views

A car starts moving rectilinearly, first with acceleration 5 m/s^2 (the initial velocity is equal to zero), then uniformly , and finaly , decelerating at the same rate, comes to stop.Total time of motion equals to 25 sec . The avg velocity during that time is equal to 72 km/hr .How long does the car move uniformly?

Anonymous User Physics 05 Jun, 2020 97 views

Which is the smallest element in the periodic table and why ???

Anonymous User Chemistry Periodic Properties 05 Jun, 2020 71 views

Find the angle of projection at when horizontal range and maximum height of a projectile are equal?

Anonymous User Physics Kinematics 04 Jun, 2020 106 views

A swimmer wants to reach to a point just opposite on the other bank of the river. How should he swim and why?

Anonymous User Physics Kinematics 04 Jun, 2020 570 views

A ball is dropped gently from the top of tower and another ball is thrown horizontally at same time.Which ball will hit the ground first?

Anonymous User Physics Kinematics 04 Jun, 2020 140 views

A stone is projected horizontally with 20 m/s from top of a tall building. Calculate its position and velocity after 3 sec neglecting the air resistance?

Anonymous User Physics Kinematics 04 Jun, 2020 71 views

A stone is projected horizontally with 20 m/s from top of a tall building. Calculate its position and velocity after 3 sec neglecting the air resistance?

Anonymous User Physics Kinematics 04 Jun, 2020 814 views

If the displacement of a body is proportional of square of time, state whether the body is moving with uniform velocity or uniform acceleration?

Anonymous User Physics Kinematics 03 Jun, 2020 68 views

Two stones P and Q of different masses m and 2m respectively are dropped simultaneously from top of a tower and reach the ground with different energies . Which one is faster?

Anonymous User Physics Kinematics 03 Jun, 2020 488 views

Can an object with constant acceleration reverse its direction of travel ? Explain

Anonymous User Physics Kinematics 03 Jun, 2020 77 views

If the constant of gravitation (G), Planck's constant (h) and the velocity of light (c) be chosen as fundamental units. The dimensions of the radius of gyration is

Anonymous User Physics Units and Dimension 02 Jun, 2020 76 views

The magnitude of any physical quantity

Anonymous User Physics Units and Dimension 02 Jun, 2020 64 views

What is the relationship between dyne and newton of force?

Anonymous User Physics Units and Dimension 02 Jun, 2020 65 views

Wavelength of ray of light is 0.00006 m. It is equal to

Anonymous User Physics Units and Dimension 02 Jun, 2020 106 views

X = 3YZ*Z find dimensions of Y in (MKSA) system, if X and Z are the dimensions of capacity and magnetic field respectively

Anonymous User Physics Units and Dimension 02 Jun, 2020 68 views

Number of particles crossing unit area perpendicular to X-axis in unit time is given by

n =

are number of particles per unit volume in the position x1 and x2. Find dimensions of D called as diffusion constant

Anonymous User Physics Units and Dimension 02 Jun, 2020 52 views

If L, C and R represent inductance, capacitance and resistance respectively, then which of the following does not represent dimensions of frequency?

Anonymous User Physics Units and Dimension 02 Jun, 2020 58 views

A projectile is launched with an initial velocity of 30 m/s at angle of 60 degree above the horizontal. Calculate the magnitude and direction of its velocity 5s after launch?

Anonymous User Physics Kinematics 02 Jun, 2020 118 views

An object is dropped from the top of the tower of height 156.8 m and the same time another object is thrown vertically upward with velocity of 78.1 mm/s from the foot of the tower, find when and where two object meet?

Anonymous User Physics Kinematics 01 Jun, 2020 765 views