1. The probability of Team A winning a match against Team B is 1/2. Assuming independence from match to match the probability that in a 5 match series, Team A's second win occurs at the third match is

a. 1/8

b. 1/4

c. 1/2

d. 2/3

2. If p,q,r are non-coplanar unit vectors such that p×(q×r) = (q+r) /√(2), then the angle between p and q is

a. 3π/4

b. π/4

c. π/2

d/ π

3. The vector (1/3)[2i - 2j +k] is

a. unit vector

b. makes an angle π/3 with the vector [2i-4j+3k]

c. parallel to the vector [-i+j- 0.5k]

d. perpendicular to the vector [3i+2j-2k]

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## 1 comment:

u have posted the revision sets but answer key and solution set is not appearing on blog . send link to view answers -Nikhilpatil

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