প্রতিবিম্ব

An object is placed at a distance u from a simple microscope of focal length f. the angular magnification obtained depends

হানি নাটস

Angular magnification for simple microscope is given by -
$\dfrac{\beta}{\alpha}=\dfrac{\dfrac{H}{d}}{\dfrac{h}{D}}=\dfrac{D}{u}$
where D is the least distance of distinct vision.
From lens equation,
$\dfrac{1}{-D}-\dfrac{1}{-u}=\dfrac{1}{f}$
Hence, $M=\dfrac{D}{u}=1+\dfrac{D}{f}$
Therefore depends only on $f$ .

প্রতিবিম্ব টপিকের ওপরে পরীক্ষা দাও

এখনো না বুঝতে পারলে ডাউটস এ পোস্ট করো

পোস্ট করো

Related question

An object is placed $15\ cm$ from a diverging mirror of radius of curvature $20\ cm$ . What is the image magnification produced?

Two plano-convex lenses of focal lengths $f$ and $2 f$ are coaxially separated so that the spherical aberration is minimized. The effective focal length of the combination is :

Fill in the blanks:
The equation of mirror formula is ___

If linear magnification for a spherical mirror is $\dfrac{3}{2}$ , then we may write: (symbols have their usual meanings)