List of practice Questions

Three cubes of sides 6 cm, 8 cm and 1 cm are melted to form a new cube then the length of the edge of the new cube is

If A+B=90° and cot B =¾ then the value of tan A=

In the figure, AP=12 cm, PB = 16 cm. Let \(\pi=3\), then the perimeter of the shaded portion is

If the diameter of a sphere is 'd' then its volume is

A reservoir is in the shape of a frustum of a right circular cone. It is 8 m across at the top and 4 m cross at the bottom. It is 6 m deep then its capacity is

A dice is thrown twice. Then the probability of that '5' will come up at least once.

If the mean of 6, 7, x, 8, y, 14 is 9 then x+y=

From the figure, \(θ=\)

The tops of two poles are of height 20 m and 14 m are connected by a wire. If the wire makes an angle 30° with the horizontal, then the length of the wire is

If three coins are tossed simultaneously, then the probability of getting at least two heads is

The A.M. of 30 students is 42. Among them, two students got zero marks. Then A.M. of the remaining students is

The median of 17,31, 12, 27, 15, 19, 23 is

Mode of A, B, C, D,.........., Z is

The value of \(\sin \theta\) or \(cosθ\) never exceeds

In the figure, the value of cosec A is

In an atom, when electron jumps from ground state to excited state

The orbital which is filled with electrons immediately after '3p' is -

When n = 4, the total number of subshells in an orbit is n =

Which of the following has larger wavelength in electromagnetic spectrum?

The quantum number which explains about the spacial orientation of orbitals is

The correct set of four quantum number values for the valence electron of sodium atom is

The impurities present in the ore is called as

Which of the following is used as a flux in the smelting of Haematite?

Potassium and Calcium belongs to

Which of the following is an ore of Iron ?