Sol: Let the maximum volume of the cone that can be carved will be of radius = 0.5 side length of cube. Radius, R = 0.5L = 0.5 * 21 = 10.5 cm... View Article
Yes. All squares are parallelograms. This is because the opposite sides of a parallelogram are equal in length; hence squares with all sides... View Article
(I) A charged balloon repels another charged balloon as both have like charges and like charges repel each other. (II) Whereas an uncharged... View Article
The correct answer is (C) Gallium Arsenide. Gallium arsenide is an example of a direct bandgap semiconductor. Explore more such questions and... View Article
Any change in which only physical properties of substances are changed and no new substance is formed is called a physical change, and physical... View Article
Bauxite is a form of sedimentary rock and is the principal source of the popular metal aluminium. It is usually obtained from the topsoil in... View Article
The Correct answer is (C) Glasses. (A) Hat-- is made up of the natural substance of a birds feather. (B) Shoes- Leather shoes are natural... View Article
The contributions of Jyotiba Phule in preparing the ground for the National Movement are: He worked for the upliftment of the lower class and... View Article
The correct answer is (C) Magnetic Force. The force which a magnet exerts on iron and steel is called the magnetic field. The magnetic force is... View Article
The potential energy of a hydrogen atom is zero in the ground state. An electron is a board to the nucleus with an energy of 13.6 eV. Now we... View Article
The correct answer is (A) a > b. As given A = cosec 2° B = cosec 2 ⇒ ⇒ cosec 114.59° ≅ cosec 115° ⇒ cosec(180 - 65)°= cosec 65° As 2°... View Article
Geoid means an earth-like shape. Earth is slightly flattened at the poles, which is why its shape is described as a Geoid. Geoid refers to the... View Article
As given: All the works are done by the boy to climb up the ladder. Therefore work done by the ladder is zero. Therefore, Explore more such... View Article
The points A(−4,9,6), B(−1,6,6) and C(0,7,10) form a right-angled, isosceles triangle. Therefore, the triangle formed from the above-given... View Article
The two advantages of eddy current in practical applications are: Sensitivity to surface defects: Able to detect defects of 0.5mm in length... View Article
