AIPMT 2001 | Atoms and Nuclei Question 122 | Physics

AIPMT 2001

MCQ (Single Correct Answer)

-1

The interplanar distance in a crystal is 2.8 $$ \times $$ 10^$$-$$8 m. The value of maximum wavelength which can be diffracted

2.8 $$ \times $$ 10^$$-$$8 m

5.6 $$ \times $$ 10^$$-$$8 m

1.4 $$ \times $$ 10^$$-$$8 m

7.6 $$ \times $$ 10^$$-$$8 m

AIPMT 2001

MCQ (Single Correct Answer)

-1

Out of Syllabus

Half life of a radioactive element is 12.5 hour and its quantity is 256 g. After how much time its quantity will remain 1 g?

50 hrs

100 hrs

150 hrs

200 hrs

AIPMT 2000

MCQ (Single Correct Answer)

-1

Maximum frequency of emission is obtained for the transition

n = 2 to n = 1

n = 6 to n = 2

n = 1 to n = 2

n = 2 to n = 6.

AIPMT 2000

MCQ (Single Correct Answer)

-1

Out of Syllabus

The relation between $$\lambda $$ and T_1/2 as (T_1/2 $$ \to $$ half life)

T_1/2 = $${{\ln 2} \over \lambda }$$

T_1/2 ln2 = $$\lambda $$

T_1/2 = $${1 \over \lambda }$$

($$\lambda $$ + T_1/2) = ln2

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