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If U = { a, b, c, d, e, f, g, h} , find the complements of the following sets: -e B C D F find the complements of the following sets: g} H If U = { a October 13, 2021 Category: Chapter 1 - Sets , Maths , NCERT Exemplar Class 11 ,

2. Let s denote the semi-perimeter of a triangle ABC in which BC = a, CA = b, AB = c. If a circle touches the sides BC, CA, AB at D, E, F, respectively, prove that BD = s – b. -e 2. Let s denote the semi-perimeter of a triangle ABC in which [...]

The group having isoelectronic species si (a) O-, F-, Na, Mg+ (b) O2-, F-, Na, Mg 2+ (c) O-, F-, Na+, Mg 2+ (d) O2-, F-, Na+, Mg 2+ F Mg 2+ Mg 2+ (c) O- Mg 2+ (d) O2- Mg+ (b) O2- Na The group having isoelectronic species si (a) O- November 10, 2020 [...]

The correct order of increasing radii of the ions Br – , F – , O 2- and s 2- is as follows F O 2- and s 2- is as follows The correct order of increasing radii of the ions Br - November 9, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + [...]

The radii of F, F- , o and o -2 are in the order of (a) O 2- > F- > O > F (b) O 2- > F- > F > O (c) F- > O 2- > F > O F o and o -2 are in the order of (a) O 2- [...]

A cylindrical tube, open at both ends, has a fundamental frequency, f, in air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the A cylindrical tube F has a fundamental frequency in air. The tube is dipped vertically in water so that half of [...]

Three sound waves of equal amplitudes have frequency (f -1), f, and (f + 1). They superpose to give beats. The number of beats produced per second will be and (f + 1). They superpose to give beats. The number of beats produced per second will be F Three sound waves of equal amplitudes have [...]

2. If E, F, G and H are respectively the mid-points of the sides of a parallelogram ABCD, show that ar (EFGH) = 1/2 ar(ABCD). 2. If E F G and H are respectively the mid-points of the sides of a parallelogram ABCD show that ar (EFGH) = 1/2 ar(ABCD). October 15, 2020 Category: Chapter [...]

An equiconvex lens is cut into two halves along (1) XOX’ adn (2) YOY” as shown in figure. Let f, f’, f” be the focal length of the lens, of each half in case (1) and of each half in case (2) An equiconvex lens is cut into two halves along (1) XOX' adn (2) [...]

In the circuit shown in figure E,F, G and H are cell of emf 2,1,3, and 1V respectively. The resistances 2,1,3 and 1(Omega)are their respective internal resistance .Calculate (a)the potential difference between B and D and (b) the potential differences across the terminals of each of each of the cells G and H. 1 3% [...]