Optical Instrument

The aperture of the objective is \( 24.4 \, \text{cm} \). The resolving power of this telescope, if a light of wavelength 2440 Å is used to see the object will be:

Q3.JEE Main 2026 21st Jan Morning Shift IntegerEasy

In a microscope the objective is having focal length \( f_o = 2 \, \text{cm} \) and eye-piece is having focal length \( f_e = 4 \, \text{cm} \). The tube length is \( 32 \, \text{cm} \). The magnification produced by this microscope for normal adjustment is __________.

Q4.JEE Main 2022 27th July Morning ShiftMCQ Single ChoiceMedium

A microscope wave initially placed in air (refractive index \( 1 \)). It is then immersed in oil (refractive index \( 2 \)). For a light whose wavelength in air is \( \lambda \), calculate the change of microscope’s resolving power due to oil and choose the correct option.

JEE MainsJEE AdvanceBITSATJEE Mains | PYQ

Optical Instrument

JEE Mains JEE Advance BITSAT
JEE Mains | PYQ