X-ray from a tube with a target A of atomic number Z shows strong Kα lines for target A and two weak Kα lines for impurities. The wavelength of Kα lines is λ0 for target A and λ1 and λ2 for two impurities respectively.λ0λ1=4 and λ0λ2=14. The screening constant of Kα lines is unity. Select the correct alternative(s) :
The atomic number of first impurity is 2Z−1
The atomic number of second impurity is Z+12
The atomic number of first impurity is 2Z+1
The atomic number of second impurity is Z2+1
A
The atomic number of first impurity is 2Z+1
B
The atomic number of first impurity is 2Z−1
C
The atomic number of second impurity is Z+12
D
The atomic number of second impurity is Z2+1
Open in App
Solution
Verified by Toppr
λ0λ1=4⇒(Z1−1)2(Z−1)2=4⇒Z1=2Z−1
λ0λ2=14⇒(Z2−1)2(Z−1)2=14⇒Z2=Z+12
So, the answers are option (A) & (C).
Was this answer helpful?
0
Similar Questions
Q1
X-ray from a tube with a target A of atomic number Z shows strong Kα lines for target A and two weak Kα lines for impurities. The wavelength of Kα lines is λ0 for target A and λ1 and λ2 for two impurities respectively.λ0λ1=4 and λ0λ2=14. The screening constant of Kα lines is unity. Select the correct alternative(s) :
View Solution
Q2
X− ray from a tube with a target A of atomic number Z shows strong K− lines for target A and weak K− lines for impurities. The wavelength of Kα lines is λα for target A and λ1 and λ2 for two impurities. λαλ1=4andλαλ2=14Assuming the screening constant of Kα lines to be unity. The atomic number of the impurities Z1 and Z2 is
View Solution
Q3
X-ray from a tube with a target A of atomic number Z shows strong K lines for target A and weak K lines for impurities. The wavelength of Kα lines is λz for target A and λ1 and λ2 for two impurities. λzλ1=4andλzλ2=14 Assuming the screening constant of Kα lines to be unity, select the correct statement(s)
View Solution
Q4
X− ray from a tube with a target A of atomic number Z shows strong K− lines for target A and weak K− lines for impurites. The wavelength of Kα lines is λz for target A and λ1 and λ2 for two impurities. λzλ1=4andλzλ2=14Assuming the screening constant of Kα lines to be unity, select the correct statement(s).
View Solution
Q5
Target of a coolidge tube contains two impurities. Atomic number of the target is Z and that of 1st and 2nd impurities is Z1 and Z2. Wavelength of Kα lines of target is λ and that of impurities are λ1 and λ2 where, λλ1=4 and λλ2=14, then