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Solution


Q.

The Product of a rational and irrational number is
1 Rational  
2 Irrational  
3 (a) or (b)  
4 None of these  

Ans.

(3)

Explanation: Rational No. x Irrational No.

Case I: 12 × 3 =32 = Irrational no.

Case II: 01 × 3 = 0 = Irrational no.

∴ Product of rational no. and irrational no. may be rational no an irrational number