Understanding the Light Year: A Unit of Distance and Its Cosmic Significance

 Imagine you're gazing up at the night sky, marveling at the twinkling stars. Have you ever wondered how far away those stars are? What if I told you that the distances we measure in space are so vast that we use a special unit called a light year? In this blog post, we'll unravel the mystery of the light year, a fascinating unit of measurement that's pivotal in the field of astronomy.

HOW TO CALCULATE THE DIMENSIONS OF DENSITY

ANOTHER VIDEO ON CIRCULAR MOTION

A string of length 0.5m carries a bob of mass 0.1 kg at its end. It is used as a conical pendulum with a period 1.41 s. Calculate the angle of inclination of string with vertical and tension in the string.https://youtu.be/btKa-uthLV0

keep watching, PHYSICS WITH AKSHAY GOLE

12.8 Stationary waves - How to determine linear density of wire

1.   A sonometer wire of length 0.5 m is stretched by a weight of 5 kg. The fundamental frequency of vibration is 100 Hz. Determine the linear density of material of wire.

11.9 RAY OPTICS 01- How to find the distance of image for convex mirror.

An object is placed at a distance of 6 cm from a convex mirror. If the focal length of a mirror is 12 cm find the position and nature of an image.

How to find angular acceleration - 02

The angular displacement of a particle is given by

𝜃= 〖5𝑡〗^3+〖10𝑡〗^2−2𝑡+3, where time ‘t’ is in second and 𝜃 is in rad. The angular acceleration of particle at

t = 3 sec

a) 90 𝑟𝑎𝑑 𝑠^(−2)                     b) 110 𝑟𝑎𝑑 𝑠^(−2) 

c) 100 𝑟𝑎𝑑 𝑠^(−2)                   d) 120 𝑟𝑎𝑑 𝑠^(−2)

How to find angular acceleration....

The angular displacement of a particle is given by

𝜃= 〖6𝑡〗^2−4𝑡+6, where time ‘t’ is in second and 𝜃 is in rad. The angular acceleration of particle at t = 4 sec

a) 6 𝑟𝑎𝑑 𝑠^(−2)                       b) 24 𝑟𝑎𝑑 𝑠^(−2) 

c) 12 𝑟𝑎𝑑 𝑠^(−2)                     d) 48 𝑟𝑎𝑑 𝑠^(−2)