If A and B are independent events such that P(A) = 0.4, P(B) =x and P(A ∪ B) = 0.5, then x = ?
A. \(\frac{4}{5}\)
B. 0.1
C. \(\frac{1}{6}\)
D. None of these
Answered Feb 05, 2023
If A and B are mutually exclusive events then,
P(A) = 0.4, P(B) = X
And P(A ∪ B) = P(A)+P(B) = 0.5 = 0.4 + P(B)
⇒ P(B) = 0.1
Correct option is B) Portugal
(B) 68 cm LCu αCu ∆T = LAl αAl ∆T ∴ 88 × (1.7 × 10-5) = LAl(2.2 × 10-5) ∴ LAl = \(\frac{88\times1.7}{2.2}\) ∴ LAl = 68 cm
B) Resistance of a conductor is directly proportional to its length
(C) Analysis – Response
(A) length of the conductor.
Correct option is A) 3
Correct option is D) 1
D) Area of contact
B) spring balance, brick, thread
Answer is False
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