List of practice Questions

The angular speed of a motor wheel is increased from 1200 r.p.m. to 3120 r.p.m. in 16 s. What is its angular acceleration?
Given below are two statements:
Statement-I In case of bi-prism, the coherent sources are produced by the phenomenon of refraction.
Statement-II: In case of Llyod mirror, coherent sources are produced by the phenomenon of reflection.
In the light of the above statements, choose the correct answer from the options given below.
The dimension for conductivity (c) is.
Let $\lambda \in R$ and let the equation $E$ be $|x|^2-2|x|+|\lambda-3|=0$. Then the largest element in the set $S=$ $\{x+\lambda: x$ is an integer solution of $E\}$ is
The ratio of halflife and average life for a radioactive sample is_____.
An industry has two firms. They face an inverse demand function P=200-4Q and a constant unit cost of Rs.8.0. The Cournot duopoly equilibrium price (P) and Quantity (Q) will be
Suppose that for a random sample of size 10, the value of covariance between two variables X and Y is 100 and the standard deviations of X and Y are 5 and 20 respectively. What is the value of regression coefficient in regression of Y on X?
Daniel Thorner referred to colonial investment in ____ as "private investment at public risk".
A vertical triangular area with vertex downward and attitude 'h' has its baas lying on the free surface of a liquid. The center of pressure below the free surface is at distance of
An article is sold for 16500 which was bought at 18750. Find the loss percent.
Look at the series: 1224, 612, 204, 102, 34,....... Which one of the following numbers should come next in the series?
A text, according to Roland Barten, is a
If $\int_{0}^{1} $ 1/(5+2x-2x2)(1+e(2-4x)) dx = 1/loge (α+1/β) a, β>0, then a4- β4 is equal to

Chiral complex from the following is 

 

For any positive integer 7m-3m is divisible by
Following anti-oxidant is used to prevent oxidative degradation of plastic :
The following carbonyl compounds absorb IR radiations in the decreasing order.
A.IR radiations
B.IR radiations
C.IR radiations
D.IR radiations
Choose the correct answer from the options given below:
Membrane filters are not manufactured from which of following polymers
The relative order of stability of conformers of 1,3-dimethylcyclohexane is (equatorial - e, axial-a)
Considering the following reactions and their reduction potentials in acidic medium

What will be the free energy change (\(\triangle\)G) of the reaction. \(IO^-_3\)→ \(\frac{1}{2}I_2\)
A monochromatic radiation is incident on a solution of 0.05 molar concentration of an absorbing substance. The intensity of the radiation is reduced to one fourth of the initial value after passing through 10 cm length of the solution. Calculate the molar extinction. coefficient of the substance.
The initial rate of a reaction in which the substrate, S, undergoes a reaction in the presence of catalyst C, was found to be equal to v0 = \(\frac{K_2[S]_0[C]_0}{[S]_0+Km} \)The probable condition in which the reaction took place was
The phenomenon of existence of two or more compounds possessing the same molecular formula but different properties is referred as ________ .
Which of the following is NOT a cellulosic fibre?
Which of the following compound represent the correct structure of (2R, 3S)-2,3-pentanediol?