Back to ATOMS
JEE PHYSICS MCQ: ATOMS
1
Medium
1 of 1
Analyzing
+4 | -1
Assertion (A): A laser beam of can drill holes through a metal sheet whereas a torch light cannot.
Reason (R): The frequency of laser light in much higher than that of torch light.
Reason (R): The frequency of laser light in much higher than that of torch light.
View answer and explanation
Correct option: C
(A) is true but (R) is false
Option C ((A) is true but (R) is false) is correct because a laser can drill holes due to its high intensity and focused beam, not its frequency.
More Questions from ATOMS
Practice All Chapter MCQs →
The de-Broglie wavelength of an electron in the first Bohr orbit is
The volume occupied by an atom is greater than the volume of the nucleus by a factor of about
For a hydrogen atom, when electron jump from to , then wave length of radiation emitted found to be . Then, for which transition of electron of a 'He' atom, the wavelength of radiation emitted will be equal to ' '.
Energy of characteristic X-ray is a consequence of
Taking Rydberg’s constant , first and second wavelength of Balmer series in hydrogen spectrum is
When hydrogen atom is in its first excited level, its radius is its ground state radius
