AIPMT 2001 | Atoms and Nuclei Question 115 | Physics

AIPMT 2001

MCQ (Single Correct Answer)

-1

The energy of hydrogen atom in n^th orbit is E_n then the energy in n^th orbit of singly ionised helium atom will be

4E_n

E_n/4

2E_n

E_n/2

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 2001

MCQ (Single Correct Answer)

-1

X(n, $$\alpha $$) $${}_3^7$$Li, then X will be

$${}_5^{10}$$ B

$${}_5^9$$ B

$${}_5^{11}$$ Be

$${}_2^4$$ He.

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