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0:07:46

Spring mass system in vertical plane is shownin figure, Initially springs are in natural length and

0:06:42

A slab S of mass 1 kg is released from a height of 1cm from the top of a spring S' of force constant

0:03:45

Light takes t1 sec to travel a distance x cm.and Same light take t2 sec to travel 10x cm in medium .

0:04:06

Find the value of the angle of emergence from the prism. Refractive index of the glass is √3.

0:04:22

A Vessel is quarter filled with a liquid of refractive index μ. The remaining parts of the vessel

0:07:32

In the given situation, for what value of i, the incidence ray will retrace its initial path.

0:06:27

Apoint source of light is placed at the bottom of a water lake If the area of the illuminated circle

0:05:26

a glass cube of eadge 1cm and refrative index 1.5has a spot at the center the area of the cube

0:03:42

A fish rising vertically up towards the surface of water with speed 3 ms−1 observes a bird diving

0:08:55

An optical bench has 1.5 m long scale having four equal divisions in each cm. While measuring the

0:10:09

Similar triangle ex 6 q4 andq5

0:04:07

A monochromatic light is traveling in a medium of refractive index n=1.6. It enters a stack of

0:08:12

Converse of BPT#class10th #math #class10maths

0:09:03

Two equilateral-triangular prisms P1​and P2​ are kept with their sides parallel to each other, in

0:05:23

A bullet of mass 200 g having initial kinetic energy 90 J is shot inside a long swimming pool as

0:10:16

A thin prism of angle 6º and refractive index for yellow light nY = 1.5 is combined with another

0:05:44

Diameter of a plano–convex lens is 6 cm and thickness at the centre is 3 mm. If the speed of light

0:04:18

A driver stops his car at a red light. The car is fitted with side view mirror of focal length 10 m.

0:06:43

Monochromatic light is incident on a glass prism of angle A. If the refractive index of the

0:06:47

A ray of light entering from air into a denser medium of refractive index4/3 as shown in figure. Th

0:07:33

A ray of light entering from air into a denser medium of refractive index 4/3, as shown in figure.