Compound Microscope

Q.

Who invented microscope

Q.

Explain the experiment done by Robert Hooke. [2 MARKS]

Q.

How many lenses does a compound microscope use?

Q.

Eye lens is a

1. double convex lens

2. double concave lens

3. piano convex lens

4. piano concave lens

Q.

Identify the parts labelled A and B.

1. A - Objective lens, B - Eyepiece
2. A - Eyepiece, B - Objective lens
3. A - Focussing lens, B - Eyepiece
4. B - Objective lens, B - Convex lens

Q. if compound microscope was discovered by Robert Hooke then who is Z. Jansen?

Q.

Who invented the first microscope?

Q. What are the parts of the microscope?

Q. In compound microscope, magnification does not depend upon

1. Focal length of lens
2. Numerical aperture of objective lens
3. Tube length of microscope
4. All of the above

Q. The compound microscope uses -------- lenses to magnify the objects.

Q.

Identify the parts labelled in red(A) and blue(B).

1. A - Eyepiece lens, B - Objective lens

2. A - Objective Lens, B - Eyepiece Lens

3. A - Condensor lens, B - Eye lens

4. A - Objective lens, B - Condensor lens

Q. The class room compound microscope was invented by

1. Janssen and Janssen.
2. Knoll and Ruska.
3. Kepler and Galileo.
4. Tolles and Abbe.

Q. A compound microscope has the widest field when eyepiece and objective lenses are .............. respectively.

1. $5X,45X$
2. $10X,5X$
3. $15X,5X$
4. $5X,5X$

Q. Question 26
The instrument used to observe cells is a __.

Q. What are the parts of the microscope?

Q. This is a common compound microscope. What the labelling D indicates?

1. Eyepiece
2. Body tube
3. Fine adjustment
4. Mirror

Q.

Objects which cannot be seen by naked eyes are observed through a ___ .

1. microscope

2. glass

3. periscope

4. telescope

Q. Present-day condenser of the optical microscope was developed by_________.

1. Abbe
2. Tolles
3. Gesner
4. Galileo

Q. Dark field microscope was invented by

1. Lister.
2. Zernicke.
3. Merten et. al.
4. Carpersson.

Q. A student wishes to study the cell structure under a light microscope having 10 X eyepiece and 45 X objective. He should illuminate the object by which one of the following colors of light, so as to get the best possible resolution?

1. Yellow
2. Blue
3. Green
4. Red

Q. are square planar complexs like M(abcd) , optically actie?

Q. what is the meaning of numerical aperture of optical fiber ? . what is its formula ?

Q. The resolving power of a compound microscope will enhance with

1. Increase in both wavelength of light and numerical aperture.
2. Decrease in both wavelenth of light and numerical aperture.
3. Decrease in wavelength of light and increase in numerical aperture.
4. Increase in wavelength of light and decrease in numerical aperture.

Q. The resolving power of a compound microscope will increase with

1. Decrease in both wave length of light and numerical aperture.
2. Decrease in wave length of light and increase in numerical aperture.
3. Increase in wave length of light and decrease in numerical aperture.
4. Increase in both wave length of light and numerical aperture.

Q. what does a phase contrast microscope use for magnification

Q. which instrument is used for observing the temporary mount of cells?how should one observe the onion peel under it??

Q. In light compound microscope, the power of oil immersion lens is

1. 10X
2. 45X
3. 20X
4. 100X