Question Answers
Sahay Sir > Question Answers
A body describes simple harmonic motion with an amplitude of 5 cm and a period of 0.2 s. Find acceleration and velocity of the body when the displacement is
13
Nov
A body describes simple harmonic motion with an amplitude of 5 cm and a period of 0.2 s. Find acceleration and velocity of the body when the displacement is A body describes simple harmonic motion with an amplitude of 5 cm and a period of 0.2 s. Find acceleration and velocity of the body when [...]
Assertion: A red coloured object appears dark in the yellow light. Reason : The red colour is scattered less.
13
Nov
Assertion: A red coloured object appears dark in the yellow light. Reason : The red colour is scattered less. Assertion: A red coloured object appears dark in the yellow light. Reason : The red colour is scattered less. November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions [...]
Assertion : A double convex lens (μ = 1.5) has focal length 10 cm. When the lens is immersed in water (μ = 4/3), its focal length becomes 77 cm. Reason : 1/f = (μv − μm/μm)(1/R1−1/R2)
13
Nov
Assertion : A double convex lens (μ = 1.5) has focal length 10 cm. When the lens is immersed in water (μ = 4/3), its focal length becomes 77 cm. Reason : 1/f = (μv − μm/μm)(1/R1−1/R2) Assertion : A double convex lens (μ = 1.5) has focal length 10 cm. When the lens is [...]
Assertion: If a convex lens is kept in water its convergent power decreases. Reason: Focal length of convex lens in water increases.
13
Nov
Assertion: If a convex lens is kept in water its convergent power decreases. Reason: Focal length of convex lens in water increases. Assertion: If a convex lens is kept in water its convergent power decreases. Reason: Focal length of convex lens in water increases. November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - [...]
A circular disc of mass 10 kg is suspended by a wire attached to its centre. The wire is twisted by rotating the disc and released. The period of torsional oscillation is found to be 1.5 s. The radius of the disc is 15 cm. Determine the torsional spring constant of the wire. (Torsional spring constant α is defined by the relation J=−αθ, where J is the restoring couple and θ the angle of twist).
13
Nov
A circular disc of mass 10 kg is suspended by a wire attached to its centre. The wire is twisted by rotating the disc and released. The period of torsional oscillation is found to be 1.5 s. The radius of the disc is 15 cm. Determine the torsional spring constant of the wire. (Torsional spring [...]
Tags:
In Millikan's oil drop experiment ,
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 ,
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water ,
what is the speed of ejection of the liquid through the holes ? ,
Assertion : For the sensitivity of a camera, its aperture should be reduced. Reason : Smaller the aperture, larger is its power.
13
Nov
Assertion : For the sensitivity of a camera, its aperture should be reduced. Reason : Smaller the aperture, larger is its power. Assertion : For the sensitivity of a camera its aperture should be reduced. Reason : Smaller the aperture larger is its power. November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - [...]
Assertion : Endoscopy involves use of optical fibres to study internal organs. Reason : Optical fibres are based on phenomenon of total internal reflection.
13
Nov
Assertion : Endoscopy involves use of optical fibres to study internal organs. Reason : Optical fibres are based on phenomenon of total internal reflection. Assertion : Endoscopy involves use of optical fibres to study internal organs. Reason : Optical fibres are based on phenomenon of total internal reflection. November 13, 2020 Category: AIIMS Last 24 [...]
Assertion: The frequencies of incident, reflected and refracted beam of monochromatic light incident from one medium to another are same. Reason: The incident, reflected and refracted rays are coplanar.
13
Nov
Assertion: The frequencies of incident, reflected and refracted beam of monochromatic light incident from one medium to another are same. Reason: The incident, reflected and refracted rays are coplanar. Assertion: The frequencies of incident reflected and refracted beam of monochromatic light incident from one medium to another are same. Reason: The incident reflected and refracted [...]
Assertion: A normal human eye can clearly see all the objects beyond a certain minimum distance. Reason: The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent.
13
Nov
Assertion: A normal human eye can clearly see all the objects beyond a certain minimum distance. Reason: The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent. because One cannot see through fog November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]
Assertion: The rainbow is seen sometimes in the sky when it is raining. When one sees a rainbow, one’s back is towards the Sun. Reason: Internal reflection from water droplet causes dispersion. The final ray is in the backward direction.
13
Nov
Assertion: The rainbow is seen sometimes in the sky when it is raining. When one sees a rainbow, one’s back is towards the Sun. Reason: Internal reflection from water droplet causes dispersion. The final ray is in the backward direction. Assertion: The rainbow is seen sometimes in the sky when it is raining. When one [...]