• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

Assertion (A): √5 is an irrational number.

Reason (R): If m is an odd number greater than 1, then √m is irrational.
1 Both A and R are true, and R is the correct explanation of A.  
2 Both A and R are true, but R is not the correct explanation of A.
 
3 A is true, but R is false.  
4 A is false, but R is true  

Ans.

(3)

Clearly, √5 is irrational so Assertion (A) is true.
Let m = 9 ⇒ √m = √9 = 3 which is rational.
So, for m is an odd number greater than 1, √m need not be irrational always.
∴ Assertion (A) is true but Reason (R) is false.