Recently Active Disucss Test Question Questions

Questions 33-36 Have Multiple correct options. Two balls of equal mass make a head on elastic colission. Which of the following is true? ...

if F=n.μmg (n >1) What is the difference in the acceleration of the top block and the lower block. ...

In the question above, What will be the maximum acceleration of the block at the bottom? ...

For the questions 30-32, using the following answer: *Image* In the image above, there are two blocks m at the top, 2m at the bottom. The coefficient of friction between the two blocks is μ. While there is no friction betwee ...

In the previous question, what should be the minimum velocity such that after colission, the rod becomes horizontal? given that Lg=3/35 (L is the length, g is the acceleration of gravity) ...

A Rod 1 meter long is hinged at 1/3 meters from the top. It is under the action of gravity. A ball of same mass as the rod comes and strikes it totally inelastically. at the bottom. What should be the velocity of the center o ...

A large enclosed volume somewhere in the space is filled with large number of particle masses. They collide with easch other with e=0.9 1/100th of the fraction of the particles undergo colission every second. Assume the f ...

A ball of mass "m" hangs from a string of length L. A very large mass M>>m hits the ball horizontally and elastically with speed v. Find the minimum v, such that the ball makes a complete circular rotation. ...

A horizontal Force F(t) = kt2 is applied on a slab of mass m kept on the floor. Which of these show the friction acting as a function of time? ...

lim { tan( pi/4 - x ) } 1/x x→0 ...

Which of these is the maximum x>0 ...

Weight% of K2Cr2O7 used in the oxidation of KI is ...

Which of these is the maximum at x=5 ...

Weight% of MnO2 oxidised by potassium dichromate is ...

lim [x]+[2x]+[3x]...............[nx] n→∞ n2 ...

The weight% of KI reduced by MnO2 is ...

What is the range of: sin x + cos x ...

This is a comprehension for questions 20-23 A sample of 20 ml 0.1 M MnO2 solution is taken. In this solution 10 ml of KI solution and 3 millimole of K2Cr2O7 is added. KI in the solution is reduced by both MnO2 & K2Cr2O7. The ...

What is the maximum area that an ellipse with parameter πC can have. It is given that the area of ellipse is π. a. b while the perimeter is π(a+b) where a and b are some constants depending on the nature of the ellipse! ...

find the minima of Tan2(x-a)+Tan(x-a)+1/4 ...

The packing fraction of the unit cell is ...

The radius ratio of the voids (rvoid/ratom) is ...

Statement 1: D2 is the whole of R Statement 2: |Cos(2.π.x)|≤1 for all x ...

Assertion- Reasoning type. (Refer Instructions for the choices) Statement 1: D1 is not the whole of R Statement 2: n!.x becomes an integer for only rational values of x for large enough values of n ...

Section-IV: Linked compresension type This is a comprehension for Questions 17-19 Consider a unit cell in which atoms will occupy all corner points, all face centres, body centre and also all edge centres of the cube. The no. ...

Which is true about R3 ? ...

For the comprehension given below, answer the questions that follow. f(x)= lim Cos(n! 2. pi. x) n is an integer. n→∞ g(x) = lim Cosn(2. pi. x) n→∞ h(x) = lim {Cos(n . x) + 2} 1/n n→∞ Range of f = R ...

STATEMENT-1: The rate constant of the reaction does not increases on addition of catalyst. STATEMENT-2: The rate constant varies according to the Arrhenius equation K=Ae-Ea/RT ...

STATEMENT-1: There are two lone pairs in XeF4, still it have zero dipole moment STATEMENT-2: The shape is symmetric ...

Section-III: Reasoning type STATEMENT-1: At high altitudes cooking takes place faster STATEMENT-2: At high altitudes water boils at temperature higher than 100°C ...