SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Important Questions for Science and Technology 1

Write the use of ‘Calorimeter’.

Choose and write the correct option.

If we gradually increase the angle of incidence of a ray of light passing through prism then …..

The phenomenon of splitting of light into its component colours is ___________ .

The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.

Draw a labelled diagram: Dispersion of light through a prism.

Answer the following:

What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light. 

Explain how the formation of a rainbow occurs.

Match the Columns:

Observe the given figure and name the following.

Observe the given figure and answer the following questions.

1. Which colour light rays bend most?
2. Which colour light rays bend least.
3. What is the wavelength of violet light rays?

______ colour is deviated the least in the spectrum of white light obtained with a glass prism.

In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.

State True or False:

"Wavelength of red light is close to 700 nm.”

Observe the given diagram and answer the questions:

1. Name the process shown in the figure.
2. Name the colour that deviates the most.
3. Name the colour that deviates the least.
4. Name any one phenomenon in nature which is based on the above process.
5. Define ‘spectrum’.

Calculate the focal length of a corrective lens having power +2D.

In a Std. X class out of 40 students 10 students use spectacles, 2 students have positive power and 8 students have negative power of lenses in their spectacles.

Answer the following questions:

(1) What does the negative power indicate?

(2) What does the positive power indicate?

(3) Generally which type of spectacles do most of the students use?

(4) What defect of eyesight do most of the students suffer from?

(5) Give two possible reasons for the above defect.

Calculate the focal length of a corrective lens having power +2.5 D.

What is myopia?

Explain two possible reasons of myopia. How can it be corrected? Explain with a suitable diagram.