HARD
Earn 100

Calculate the mass of an elementary particle, which is accelerated to twice the velocity of light with the precision and has uncertainty in position.
(a)
(b)
(c)
(d)

50% studentsanswered this correctly
Important Questions on Modern Physics
MEDIUM

EASY
An accelerated electron has a speed of with an uncertainty of . The uncertainty in finding its location while in motion is .
The value of is __________. (Nearest integer)
[Use mass of electron,

EASY

MEDIUM

EASY

MEDIUM

MEDIUM

HARD
(Where Bohr radius ) is____ (Nearest integer) (Given : Mass of electron , Planck's constant )

MEDIUM

HARD
(I) An electron in molecule
(II) A hydrogen atom in a , molecule
(III) A proton in the carbon nucleus
(IV) A molecule within a nanotube

MEDIUM

MEDIUM

MEDIUM
If the uncertainty in velocity and position of a minute particle in space are, and respectively. The mass of the particle in is___(Nearest integer)
(Given : )

MEDIUM
If a cricket ball of weight has an uncertainty of in its velocity, then the uncertainty in the position of the cricket ball is

EASY

MEDIUM

HARD

EASY
A ball weighing is moving with a velocity of If the uncertainty in its velocity is , then the uncertainty in its position is _ (Rounded off to the nearest integer)
[Given: ]

EASY
) It is impossible to detemine exact position and exact momentum of an electron simultaneously.
) It is applicable to even macroscopic objects.
) It is possible to detemine the exact position and momentum of an electron simultaneously.
) It is impossible to determine the exact position and momentum of macroscopic object simultaneously.

MEDIUM

