List of practice Questions

For a p-type semiconductor, which of the following statements is true ?

Choose the sentence that is grammatically correct.

Directions: Choose the correctly spelled words to fill in the blanks.
It was a —— to work with these scientists.

The richest person in the world as per the details revealed in March 2019 is:

The Headquarters of International Solar Alliance consisting of more than 121 countries is located in:

India‘s first Chairperson of Lokpal is:

The Global Teacher Award, 2019 was awarded to a teacher in:

Choose the sentence that is grammatically correct.

Directions: Choose the correct meaning for each of the foreign language words and phrases given below.
Volvo

Directions: Choose the correctly spelled words to fill in the blanks.
Malti Ahuja is making a sincere effort to pay off her —— .

Fill in the blank with the correct options.
I can‘t work on this assignment anymore! I think I have _____ .

Fill in the blank with the correct options.
I‘m a historian. I‘m a _____ in this seminar on robots!

Which Indian personality is the recipient of the Oxford University's Bodley Medal 2019?

Name the Howitzers guns inducted into Indian Army recently.

Choose the sentence that is grammatically correct.

Let $A(4,-4)$ and $B(9,6)$ be points on the parabola, $y^2 + 4x$. Let $C$ be chosen on the arc $AOB$ of the parabola, where $O$ is the origin, such that the area of $\Delta ACB$ is maximum. Then, the area (in s units) of $\Delta ACB$, is :

The value of $\cot\left(\sum\limits^{19}_{n=1} \cot^{-1} \left(1+ \sum\limits^{n}_{p=1} 2p\right)\right) $ is :

The value of the integral $\int \limits^{2}_{-2} \frac{\sin^{2}x}{\left[\frac{x}{\pi}\right] + \frac{1}{2}} dx $ (where [x] denotes the greatest integer less than $^{20}C_r$ or equal to x) is :

Some identical balls are arranged in rows to form an equilateral triangle. The first row consists of one ball, the second row consists of two balls and so on. If $99$ more identical balls are addded to the total number of balls used in forming the equilaterial triangle, then all these balls can be arranged in a square whose each side contains exactly $2$ balls less than the number of balls each side of the triangle contains. Then the number of balls used to form the equilateral triangle is :

The value of $\int\limits^{\pi/2}_{-\pi/2} \frac{dx}{\left[x\right]+\left[\sin x\right]+4} $ where [t] denotes the greatest integer less than or equal to t, is :

The kinetic study of a reaction like vA $\to$ P at 300 K provides the following curve, where concentration is taken in mol dm$^-3$ and time in min. Identify the correct order(n) and rate constant(k) :

The $71^{st}$ electron of an element $X$ with an atomic number of $71$ enters into the orbital :

The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :

Glass has refractive index $\mu$ with respect to air and the critical angle for a ray of light going from glass to air is $\theta$. If a ray of light is incident from air on the glass with angle of incidence $\theta$, corresponding angle of refraction is

The stopping potential of the photoelectrons, from a photo cell is