Thermodynamic and Statistical Physics-Random Walk (CSIR Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Thermodynamic and Statistical Physics » Random Walk

Appeared in Year: 2014

MCQ▾

Question

A random walker takes a step of unit length in the positive direction with probability 23 and a step of unit length in the negative direction with probability 13 . The mean displacement of the walker after n steps is – (December)

Choices

Choice (4) Response

a.

0

b.

n8

c.

n3

d.

2n3

Question number: 2

» Thermodynamic and Statistical Physics » Random Walk

Appeared in Year: 2014

MCQ▾

Question

In one dimension, a random walker takes a step with equal probability to the left or right. What is the probability that the walker returns to the starting point after 4 steps? (June – 2014)

Choices

Choice (4) Response

a.

116

b.

38

c.

516

d.

14

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