Virat

Asked: October 2, 2025In: Class 10 Science

A person allowed a narrow beam of white light from the sun to enter a dark room through a small aperture and placed a glass prism in its path in such a manner that the beam falls on the face AB of the prism as shown in the figure. A screen S is placed on the other side of the prism, facing AC. On turning the prism slowly, a beautiful band of colours is obtained on the screen. It is the spectrum of sunlight. (a) Name the phenomenon due to which a prism splits the incident white light into a band of colours. (b) State the reason of getting a band of seven colours in the above case.

The phenomenon is called dispersion of light. White light is a mixture of seven colours. Each colour has a different wavelength and, hence, is refracted (bent) by the glass prism through different angles, resulting in a band of seven distinct ...

Virat

Asked: October 2, 2025In: Class 10 Science

Study the diagram given below and answer the questions: (i) Name the defect of vision represented in the diagram. (ii) Redraw the diagram and show how a corrective lens resolves this defect? Label the lens type and focal point.

Myopia (nearsightedness) — image forms in front of the retina because the eye’s lens is too strong (focal length too short) or the eyeball is too long. class 10 free sample paper for 2026 board exam class 10 science half yearly paper ...

Virat

Asked: October 2, 2025In: Class 10 Science

Study the ray diagram of an object placed in front of a lens. (i) Write three characteristics of the image formed? (ii) In which position of the object will the magnification be – 1?

From the ray diagram, the image formed is real, inverted, and diminished because the object is placed beyond 2F₁ of a convex lens. class 10 science board exam paper 2026 sample paper for class 10 science board exam 2026

Poll

Virat

Asked: October 2, 2025In: Class 10 Science

Assertion (A): Magnetic field never intersects each other. Reason (R): If two magnetic field lines intersect, it would imply two different directions of the magnetic field at that point.

The correct answer is option (A). Magnetic field lines never intersect, as stated in the assertion. The reason is correct because intersection would imply two field directions at a single point, which is impossible. Thus, both A and R are ...

Poll

Virat

Asked: October 2, 2025In: Class 10 Science

Renuka was studying a diagram related to a defect of vision and noted down possible causes for it. She wrote the following statements in her notebook. I. The focal length of the eye lens is too long. II. The eye ball becomes too small. III. The focal length of the eye lens is too short. IV. The eye ball becomes too long. Based on the given diagram, choose to the correct option that lists the correct causes of this defect.

The correct answer is option (d) III and IV. Myopia occurs when the focal length of the eye lens is too short or the eyeball is elongated, causing the image to form in front of the retina. class 10 science half ...

Virat

Study the diagram given below and answer the questions: (i) Name the defect of vision represented in the diagram. (ii) Redraw the diagram and show how a corrective lens resolves this defect? Label the lens type and focal point.

Study the ray diagram of an object placed in front of a lens. (i) Write three characteristics of the image formed? (ii) In which position of the object will the magnification be – 1?

Assertion (A): Magnetic field never intersects each other. Reason (R): If two magnetic field lines intersect, it would imply two different directions of the magnetic field at that point.

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