NEET Mantra

11.4 Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitte

ANGLE OF MINIMUM DEVIATION PRACTICAL

11.11 Show that the wavelength of electromagnetic radiation is equal to the de Broglie wavelength of

11.10 What is the de Broglie wavelength of (a) a bullet of mass 0.040 kg travelling at the speed of

11.9 Light of wavelength 488 nm is produced by an argon laser which is used in the photoelectric eff

11.8 Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maxim

11.7 The work function for a certain metal is 4.2 eV. Will this metal give hotoelectric emission for

11.6 The threshold frequency for a certain metal is 3.3 × 1014 Hz. If light of frequency 8.2 × 1014

11.5 In an experiment on photoelectric effect, the slope of the cut-off voltage versus frequency of

11.3 The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic

11.2 The work function of caesium metal is 2.14 eV. When light of frequency 6 ×1014Hz is incident on

11.1 Find the (a) maximum frequency, and (b) minimum wavelength of X-rays produced by 30 kV electron

WAVE OPTICS NUMERICAL BASED ON DIFFRACTION

WAVE OPTICS NUMERICAL BASED ON FRINGE WIDTH

WAVE OPTICS NUMERICAL BASED ON FRINGE WIDTH (QUESTION BANK )

NCERT EXCERCISE NUMERICAL OF WAVE OPTICS

WAVE OPTICS NUMERICAL PART 1 (TYPE 2 PROBLEM BASED ON MAX AND MIN INTENSITY)

WAVE OPTICS NUMERICAL PART 1 (Type 1 problem based on path diff and phase diff)

9.28 (a) For the telescope described in Exercise 9.27 (a), what is the separation between the object

9.27 A small telescope has an objective lens of focal length 140cm and an eyepiece of focal length 5

9.26 An angular magnification (magnifying power) of 30X is desired using an objective of focal len

9.24 What should be the distance between the object in Exercise 9.23 and the magnifying glass if the

9.23 (a) At what distance should the lens be held from the card sheet in Exercise 9.22 in order to v

9.22 A card sheet divided into squares each of size 1 mm2 is being viewed at a distance of 9 cm thr

9.21 At what angle should a ray of light be incident on the face of a prism of refracting angle 60°

9.14 (a) A giant refracting telescope at an observatory has an objective lens of focal length 15m. I

9.13 A small telescope has an objective lens of focal length 144cm and an eyepiece of focal length 6

9.12 A person with a normal near point (25 cm) using a compound microscope with objective of focal l

9.11 A compound microscope consists of an objective lens of focal length 2.0 cm and an eyepiece of f

Example 9.9 Find the position of the image formed by the lens combination given in the Fig. 9.20.