✅ Concave Mirrors:
By reflection of light, concave mirrors give real, inverted images if the object is beyond the focus and a virtual, erect, enlarged image if the object has a distance less than the focal length from the pole of the mirror.
👉🏻 Uses of Concave Mirrors:
➖ Concave mirrors are used in torches, searchlights, and headlights of vehicles to get powerful parallel beams of light.
➖ Concave mirrors are also used as shaving mirrors to see a larger image of the face.
➖ Dentists use concave mirrors to see bigger images of the teeth of the patients.
➖ Large concave mirrors are used to focus sunlight to produce heat in the solar furnaces.
✅ Convex Mirrors:
By the reflection of light convex Mirrors always give a virtual, erect, diminished image of the object kept infront of the mirror.
👉🏻 Uses of Convex Mirrors:
➖ The convex mirror is used as a side-view mirror in vehicles to give a smaller view of the vehicles coming from behind.
➖ They are used in shops and supermarkets and any other place where there is a requirement for detecting burglars.
➖ Convex mirrors are used in making lenses for sunglasses.
➖ Convex mirrors are used in magnifying glasses, and telescopes.
➖ Convex mirrors are used to reflect street light; because they can reflect over a wide area.
➖ Convex mirrors are kept at the street corners to avoid collisions.
By reflection of light, concave mirrors give real, inverted images if the object is beyond the focus and a virtual, erect, enlarged image if the object has a distance less than the focal length from the pole of the mirror.
👉🏻 Uses of Concave Mirrors:
➖ Concave mirrors are used in torches, searchlights, and headlights of vehicles to get powerful parallel beams of light.
➖ Concave mirrors are also used as shaving mirrors to see a larger image of the face.
➖ Dentists use concave mirrors to see bigger images of the teeth of the patients.
➖ Large concave mirrors are used to focus sunlight to produce heat in the solar furnaces.
✅ Convex Mirrors:
By the reflection of light convex Mirrors always give a virtual, erect, diminished image of the object kept infront of the mirror.
👉🏻 Uses of Convex Mirrors:
➖ The convex mirror is used as a side-view mirror in vehicles to give a smaller view of the vehicles coming from behind.
➖ They are used in shops and supermarkets and any other place where there is a requirement for detecting burglars.
➖ Convex mirrors are used in making lenses for sunglasses.
➖ Convex mirrors are used in magnifying glasses, and telescopes.
➖ Convex mirrors are used to reflect street light; because they can reflect over a wide area.
➖ Convex mirrors are kept at the street corners to avoid collisions.
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Two simple harmonic motion are represented by
y₁ = 5(sin2πt+√3 cos2πt )
y₂ = 5sin(2πt+π/4) The ratio of the amplitudes of two SHM’s is
y₁ = 5(sin2πt+√3 cos2πt )
y₂ = 5sin(2πt+π/4) The ratio of the amplitudes of two SHM’s is
Anonymous Quiz
30%
1:1
30%
1:2
22%
2:1
17%
1∶√3
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today's quiz is from Inorganic chemistry >> Classification of elements and periodicity in properties >> Atomic radius
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Which of the following parameters should be used when comparing size of a noble gas with some other element?
Anonymous Quiz
21%
Covalent radius
21%
Ionic radius
50%
Van Der Waals radius
9%
Co-ordinate radius
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The distance between two adjacent copper atoms in solid copper is 256 pm. It’s metallic radius is __ pm .
Anonymous Quiz
59%
128+
23%
123
14%
125
4%
132
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Atomic radius can be measured by
Anonymous Quiz
36%
Millikan’s oil drop method
30%
X-Ray diffraction technique
16%
Vernier Calliper
18%
Gamma Ray Scattering Technique
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✪ Current Electricity Short Notes
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Group 13 - The Boron Family 🙌
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