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Force of 1N acts on the smallest and largest side of rectangular box .Which side experience s greater pressure?

If the loudness of sound exceeds, it can cause harm to the human ear.

Which planet can be seen in morning and evening and also known as the Morning Star or the Evening Star?

Mr. Sharma goes for jogging every morning in a circular park whose circumference is 1 km. He makes 3 complete circles in 5 minutes (Approximately as fast as bolt). Find his average velocity.

A uniform metal rod is used as a bar pendulum. If the room temperature rises by ${10}^{o}C$, and the coefficient of linear expansion of the metal of the rod is 2 X ${10}^{-6}$ per ${}^{o}C$, the period of the pendulum will have percentage increase of

To what extent the atmosphere is extended above the surface of the Earth, assuming the density of air to be uniform [1.3 kg/m³] and pressure at the surface of Earth to be 10⁵ Pa. (Also assume the Earth to be perfectly spherical and no variation in 'g' due to height.)

Which organisation was responsible for excluding Pluto from the Sun's planet list?

State the energy change that takes place when a ball is dropped from some height.

Dust can be removed out of a blanket using

Arrange solid, liquid, gas on the basis of rate of diffusion in ascending order.

Mass of Mars is $6.39\times {10}^{21}kg$ and mass of Mercury is $3.285\times {10}^{23}kg$. What is the total mass in $kg$? [3 MARKS]

Which of the following do all the stars appear to revolve around ?

If someone asks you to determine how hot the day is today, what you will measure to answer that question?

Noise pollution is caused above a sound level of:

What is an electric fuse? State its purpose in the household electrical circuit.

How many perceptions of sound waves are normally observed?

Which of the following are associated with a lightning?

What are the two kinds of electric charges ?

Calculate the pressure exerted by a brick which applies a force of 2.5 Newton when it is placed on its widest base (dimensions 25 cm × 10 cm × 5 cm).

Aristotle says a moving object will come into rest by it self,but why does planet keeps moving why don't it stops

What is the cause of advanced sunrise and delayed sunset?

the pressure of liquid column ________ with the depth of column.

(a) Give two causes of noise pollution from the homes.

(b) What are the usual causes of the partial hearing loss suffered by a person?

Two plane mirrors are placed making an angle 60^o in between them. For an object placed in between mirrors, the number of images formed will be:

Rubbing of hands is what type of friction?

Sound waves have the following frequencies that are audible to human beings

[CPMT 1975]

An isosceles glass prism with angles 40${}^{\circ }$ is clamped over a tray of water in a position such that the base is just dipped in water. A ray of light incident normally on the inclined face suffers total internal reflection at the base. If the refractive index of water is 1.33 then the condition imposed on the refractive index $\mu$ of the glass is

State two ways of charging a conductor.

In an electric bulb, electrical energy is converted into

Match the following:
$\begin{array}{cc}\text{I.Coating solar cooker with black paint}& \text{a. Trap sunlight}\\ \text{II.Concave mirror}& \text{b. Absorbs more heat}\\ \text{III.Glass sheet covering}& \text{c. Converge heat at one point}\end{array}$

The SI unit of latent heat is

How to identify the pole star?

Reflection from a very smooth surface is called ___ reflection.

When the temperature of the air increases, then we observe that:

Union Minister for Science & Technology and Earth Sciences has released Seismic Microzonation reports for Delhi and Kolkata. The purpose of this microzonation is to

When you push something heavy ,the restance you fell decrease as the body stars moving . Explain what happens .