The number of all possible selections of one or more questions from 10 given questions, each question having one alternative is

(a) The sizes of the atoms taken in Thomson’s model and Rutherford’s model have the same order of magnitude. (b) In the ground state of Thomson’s model, the electrons are in...

The correct answer is D. The given matrix of the order 3 x 3 has 9 elements and each of these elements can be either 0 or 1.  Now, each of the 9...

(a) ? = 443 × 163 – 186782  = 348913664 – 348867684  = 45980

(b) ?=20/3 ÷ 24/5 =20/6 x 5/24 =25/18 = 1 7/18

(b) ?= 1680x2/5x5/7x3/8= 180

(b) Medieval Period Poets = A, B, C, D Modern Period Poets = E, F, G, H Option (a) is eliminated as it is a modern poet. Question on modern poet will come...

(c) Since, every question has five options, so no. of choices for each question = 5  ∴ total no. of choices = 5 × 5 × 5 × 5 = 625  Now, no....

(c) There can be 3 cases :  I. When one dice shows 2.  II. When two dice shows 2.  III. When three dices shows 2.  Case I : The dice which shows 2 can...

(d) Each question can be answered in 2 ways.  Hence, total no. of sequences = 2 × 2 × ........ 10 times  = 210 = 1024

The answer is (C) the Secretary General of the house