AIPMT 2002 | Dual Nature of Radiation and Matter Question 73 | Physics

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AIPMT 2002

MCQ (Single Correct Answer)

-1

The value of Planck's constant is

6.63 $$ \times $$ 10^$$-$$34 J/sec.

6.63 $$ \times $$ 10^$$-$$34 kg-m²/sec

6.63 $$ \times $$ 10^$$-$$34 kg-m²

6.63 $$ \times $$ 10^$$-$$34 J-sec.

AIPMT 2002

MCQ (Single Correct Answer)

-1

If particles are moving with same velocity, then which has maximum de Broglie wavelength?

proton

$$\alpha $$-particle

neutron

$$\beta $$-particle

AIPMT 2001

MCQ (Single Correct Answer)

-1

A photo-cell is illuminated by a source of light, which is placed at a distance d from the cell. If the distance become d/2, then number of electrons emitted per second, will be

remain same

four times

two times

one-fourth

AIPMT 2001

MCQ (Single Correct Answer)

-1

In Thomson mass spectrograph $$\overrightarrow E \bot \overrightarrow B $$ then the velocity of electron beam will be

$${{\left| {\overrightarrow E } \right|} \over {\left| {\overrightarrow B } \right|}}$$

$$\overrightarrow E \times \overrightarrow B $$

$${{\left| {\overrightarrow B } \right|} \over {\left| {\overrightarrow E } \right|}}$$

$${{{{\overrightarrow E }^2}} \over {{{\overrightarrow B }^2}}}$$

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