To increase the angular magnification of a simple microscope, one should increase:
1. | the focal length of the lens | 2. | the power of the lens |
3. | the aperture of the lens | 4. | the object size |
1. | \(\mu_{2}=\frac{1}{3},~\mu_{3}=\frac{1}{2}\) | 2. | \(\mu_{2}=3,~\mu_{3}=\frac{3}{2}\) |
3. | \(\mu_{2}=\frac{1}{3},~\mu_{3}=\frac{2}{3}\) | 4. | \(\mu_{2}=3,~\mu_{3}=2\) |
1. | \(30\) cm | 2. | \(60\) cm |
3. | \(\dfrac{20}3\) cm | 4. | \(\dfrac{40}{3}\) cm |
1. | infinity | 2. | \(+2~\text{D}\) |
3. | \(+20 ~\text{D}\) | 4. | \(+5~\text{D}\) |