221: Which one of the following is an important historical novel written during the latter half of the nineteenth century ?
(a) Rast Goftar
(b) Durgesh Nandini
(c) Maharatha
(d) Nibandhamala
222: Which of the following metals is used in the electromagnets?
(a) Soft iron
(b) Stainless steel
(c) Cobalt
(d) Copper
223: If the number representing volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be
(a) 3
(b) 4
(c) 5
(d) 6
224: A rectangular sump of dimensions 6 m x 5 m x 4 m is to be built by using bricks to make the outer dimension 6.2 m x 5.2 x 4.2 m. Approximately how many bricks of size 20 cm x 10 cm x 5 cm are required to build the sump for storing water ?
(a) 1500
(b) 3000
(c) 15000
(d) 30000
225: Assertion (A):
In 1916, Maulana Mohammad Ali and Abul Kalam Azad resigned from the Legislative Council.
Reason (R):
The Rowlatt Act was passed by the government in spite of being opposed by all Indian members of the Legislative Council.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true