Home
Class 12
PHYSICS
Two elements A and B with atomic numbers...

Two elements A and B with atomic numbers `Z_(A)` and `Z_(B)` are used to produce charateristic X-rays with frequencies `v_(A)` and `v_(B)` respectively. If `Z_(A):Z_(B)=1:2,` then `v_(A):v_(B)` will be

A

`1:sqrt2`

B

`1:8`

C

`4:1`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
D
`f prop Z^2`
`f_A/(f_B) =((Z_A)/Z_B)^2=(1/2)^2=1/4`
Promotional Banner

Similar Questions

Explore conceptually related problems

Moseley's law for characteristic X-rays is sqrt v = a(Z-b) . In this,

Two closed organ pipe A and B have the same length. A is wider than B. They resonate in the fundamental mode at frequencies V_(A) and V_(B) respectively , then

Velocity of light ray in two media A and Bare v_(1) and v_(2) respectively. If v_(B) = 1.5 V_(A) , then which medium is denser?

When two different materials A and B having atomic number Z_1 and Z_2 are used as the target in Coolidge gamma - ray tube at different operating voltage V_1 and V_2 respectively their spectrums are found as below. The correct relation is

What is atomic number Z when v= 2500s^(-1) and value of a=1 amd b=1.

Velocity of light ray in two media A and Bare v_(1) and v_(2) respectively. What is the refractive index of A with respect to B?

Velocity of light ray in two media A and Bare v_(1) and v_(2) respectively. What is the refractive index of B with respect to A?

There are three elements A, B and C. their atomic number are Z_(1), Z_(2) and Z_(3) respectively. If Z_(1)-Z_(2)=2 and (Z_(1)+Z_(2))/(2)=Z_(3)-2 and the electronic configuration of element A is [Ar]3d^(6)4s^(2) , then correct order of magnetic momentum is/are: