AIPMT 2014 | Dual Nature of Radiation and Matter Question 33 | Physics

If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the de Broglie wavelength of the particle is

AIPMT 2014

MCQ (Single Correct Answer)

-1

When the energy of the incident radiation is increased nby 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is

0.65 eV

1.0 eV

1.3 eV

1.5 eV

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

The de-broglie wavelength of neutrons in thermal equilibrium at temperature T is

$${{3.08} \over {\sqrt T }}\mathop A\limits^ \circ $$

$${{0.308} \over {\sqrt T }}\mathop A\limits^ \circ $$

$${{0.0308} \over {\sqrt T }}\mathop A\limits^ \circ $$

$${{30.8} \over {\sqrt T }}\mathop A\limits^ \circ $$

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

A source of light is placed at a distance of 50 cm from a photo cell and the stopping potential is found to be V₀. If the distance between the light source and photo cell is made 25 cm, the new stopping potential will be :

V₀/2

V₀

4V₀

2V₀

Previous Next

NEET Subjects

Biology

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution