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Question

Convex mirror is used as:

This question was previously asked in
SSC Selection Post 2018 Graduation Level Question Paper (18 Jan, 2019) (Shift 3)
The correct answer is

Rear view mirror in vehicles

The correct answer is Rear view mirror in vehicles.

The mirror formula, $\frac{1}{\text{f}} = \frac{1}{\text{v}} + \frac{1}{\text{u}}$, and the magnification formula, $\text{m} = -\frac{\text{v}}{\text{u}} = \frac{\text{Image Height}}{\text{Object Height}}$, apply to convex mirrors as well, with appropriate sign conventions. For a convex mirror, the focal length 'f' is considered negative, and for real objects placed in front, the object distance 'u' is negative. The image distance 'v' is always positive (image behind the mirror), resulting in a positive magnification 'm' (erect image) and |m| < 1 (diminished image).

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Similar Questions

  1. Due to which scientific phenomenon does a stick, when partly immersed in water, appears to be bent?

  2. The defect in image formation for the wandering of the focus on the principal axis of a lens is called ________.

  3. The phenomenon of total internal reflection can occur when light travels from:

  4. The phenomenon of interference in light waves is a direct consequence of:

  5. When a ray of light is passed through a prism, it splits into his constituent colours. This phenomenon is called:


Important Questions from Optics

  1. Who was the first one to use a glass prism to obtain the spectrum of sunlight?

  2. Twinkling of stars is due to:

  3. In which a convex mirror is used?

    A. Rear View mirrors in vehicles

    B. Glass windows

    C. Makeup Mirror

    D. Kaleidoscope

  4. An object is placed 10 cm in front of a lens. The image formed is real, inverted and of same size as the object. What is the focal length and nature of the lens?

  5. The power of a lens is -2.5 D. The type of lens and its focal length are respectively:

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