What are the uses of spherical mirror?
- used as a rear view mirror or wing mirrors in vehicles also called drivers mirror.
- used as reflectors in street lamps to diverge light over a larger area.
- used as surveillance mirror which is often used at the bent of a road or ghats (curved roads at hills)
- used as security mirror in shops.
Which mirror is used in solar cooker?
Concave mirrors are used in solar cookers. The reasons for using a concave mirror in solar cookers are given below: Concave mirrors absorb all the incident light and reflect it to a single focal point.
Can plane mirror be used in solar cooker?
Plane mirrors are used in solar cookers and work on the principle of reflection. The total sunlight used for cooking would become more as the sunlight falling directly on the glass adding to the sunlight reflected from the mirror.
What is the principle used in solar cooker?
Solar cooker works on the principle that sunlight warms the pot, which is used for cooking the food. Now, this warming of the pot occurs by converting light energy to heat energy. Concave mirrors are used in these types of cookers because these mirrors reflect sunlight into a single focal point.
Can we use plane mirror in solar cooker?
Note: A plane mirror can be used in a solar cooker but it cannot concentrate the rays at point as the concave mirror does. Thus, the maximum heat will not be achieved. A convex cannot be at all since it will diverge away the sun rays falling on it.
Why is plane mirror used in solar cooker?
Hint: The mirror used to concentrate the solar light to heat the ingredient present inside the cooker. So the mirror which will concentrate all the sunray at a point which will be used in the solar cooker.
What is the role of a plane mirror in solar cooker?
Plane mirror reflect the sunlight thereby increasing the intensity of solar energy. Glass sheet prevents heat escape from solar cooker.
What is the role of mirror in solar cooker?
A concave mirror is used in solar cooker because it converges light rays coming from infinity to a point so that more heat is produced at the point sufficient to cook the food.
Which mirror is used in street light?
Hence, comparing all the given options, it can be concluded option B is correct; a street light bulb uses the convex mirror as reflectors. Note: Reflectors light bulbs are generally used in the heavy light application, in floodlights and in spotlights. Reflectors are used because they can spread light in a large area.
Which mirror is used for dentist?
A concave mirror gives the dentist a magnified reflection of the mouth while also refracting a bit of light. This means the image in the mirror is larger, brighter, and, for the dentist, easier to see. Another plus of using a concave mirror is that the image in the mirror isn’t inverted.
What is Mirror formula?
A mirror formula can be defined as the formula which gives the relationship between the distance of object ‘u’, the distance of image ‘v’, and the focal length of the mirror ‘f’. The mirror formula is applicable for both, plane mirrors and spherical mirrors (convex and concave mirrors).
Why is mirror formula used?
If light rays from the object fall on the mirror and are then reflected and converge to form an image, the image thus formed is a real image. To obtain exact information about the size and magnification of the image, and the distance of the image from the spherical mirror, we can use the mirror formula.