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What is a ray

Posted by Tejas Ghare 7 years, 11 months ago

2 answers

Shivam Prasad 7 years, 11 months ago

You should know the laws of reflection. 1.The ray of light which Strick the surface is called incedent ray. 2.The ray of light which comes back after reflection from the surface is called reflected ray. 3.The perpendicular drawn to the reflecting surface at the point of incidence is called the normal ray. 4.The angle between the normal and the incident ray is called the angle of incident. 5. The angle between the normal and the reflected ray is called the angle of reflection. 6.The angle of incident equal to the angle of reflection.

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Bhai Bhai 7 years, 11 months ago

A line that has a starting point but no ending point

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Images formed by the converging lens

Posted by Ruturaj Bhosale 7 years, 11 months ago

CBSE > Class 08 > Science

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What is second sexual characters in females

Posted by H Kumar 7 years, 11 months ago

CBSE > Class 08 > Science

2 answers

Nehal Sukhwani 7 years, 11 months ago

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Arihant Kothari 7 years, 11 months ago

Pata Nahi

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What is harmoned

Posted by Saurav Singh 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Vaibhav Gujjar 7 years, 11 months ago

HARMONE MEANS OUR BODY MATURITY .I WNT IT IS HORMONE NOT HORMONED WHICH SCHOOL YOU STUDY

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uses of electroplating

Posted by Vaibhav Gujjar 7 years, 11 months ago

CBSE > Class 08 > Science

3 answers

Prateek Nayak 7 years, 11 months ago

It is used for decorative purposes and prevent from rusting

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Alok Yadav 7 years, 11 months ago

The process of depositing a layer of any desired metal on any object is called electroplating. BY alok yadav KV no 1

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Vaibhav Gujjar 7 years, 11 months ago

electroplating means coating of metal to give a shiny appearance. uses of electroplating are- .used for coating metals with non metals. .it is also known as artificial jewellery. .it is used in industries. by=VAIBHAV CHAUDHARY SAMSARA SCHOOL CLASS 8

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Type of satelite

Posted by Arjun Singh 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Riya Singh 7 years, 11 months ago

There are two types of satellites are:- 1.)Natural satelite 2.)artificial satelite

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Write two difference between natural satellite and artificial satellite

Posted by Ramkishor Koli 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 11 months ago

1: Artificial satellites are man made while natural satellite are formed by nature.
2: Artificial satellites need energy for installation and to rotate around any planet while natural satellites do not require any energy for revolving.
3: Artificial satellites move closer than the natural satellite
4: Moon is a natural satellite whilst telecom satellites are examples of an artificial satellite.

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Virus

Posted by Sunoj Menon 7 years, 11 months ago

CBSE > Class 08 > Science

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Ewbs

Posted by Jerry Gupta 7 years, 11 months ago

CBSE > Class 08 > Science

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What are vacuole

Posted by Jerry Gupta 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Jerry Gupta 7 years, 11 months ago

The blank looking structure in the cytoplasm Is called vacuote

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What is menstrual cycle

Posted by Nk Thakur 7 years, 11 months ago

CBSE > Class 08 > Science

0 answers

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What I What is earth

Posted by Pratipal Singh 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Aditya Bhambu 7 years, 11 months ago

Earth is a planet in which we live earth is a only planet in which the air , water, and in which the living organisms are found. Thanks

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What. Is audible range

Posted by Pratipal Singh 7 years, 11 months ago

CBSE > Class 08 > Science

3 answers

Prateek Nayak 7 years, 11 months ago

20hz to 20khz

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Ayush Jyani 7 years, 11 months ago

20hz to 20000hz

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Nk Thakur 7 years, 11 months ago

20hertz to 2000hz

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Ham deforestation kese bacha sakte he

Posted by Gagan Saini 7 years, 11 months ago

CBSE > Class 08 > Science

3 answers

Riya Singh 7 years, 11 months ago

Firstly you should learn how to talk in English

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Aditya Bhambu 7 years, 11 months ago

By planting more and more trees and if you cut 1. Tree than in the place of that 1 tree we have to plant 2-5 trees thx

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Aditya Raj 7 years, 11 months ago

By plantings trees

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What is the youngest age of coal

Posted by Akshat Parakh 7 years, 11 months ago

CBSE > Class 08 > Science

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Why are geostationary satellites called so

Posted by Mayank Jain 7 years, 11 months ago

CBSE > Class 08 > Science

0 answers

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An activityto show that incident ray the reflected ray and the normal at the point of incidence lie in the same plane

Posted by Aina Jain 7 years, 11 months ago

CBSE > Class 08 > Science

0 answers

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A plant cell lacks?

Posted by Nirdhar Mohite 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Nirdhar Mohite 7 years, 10 months ago

Haemoglobin

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What is cyptoplasm

Posted by Saqueeb Alam 7 years, 11 months ago

CBSE > Class 08 > Science

2 answers

Nirdhar Mohite 7 years, 11 months ago

It also helps in exchange of materials between cell organelles

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Nirdhar Mohite 7 years, 11 months ago

It is a fluid that fills the cell and occurs between plasma membrane and nucleus. Cell organelle like mitochondria and ribosomes, etc are suspended in cytoplasm.

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Which is the heaviest animal cell

Posted by Khushi Chouhan 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Khushi Chouhan 7 years, 11 months ago

Nucles

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What is the season of rabi crops ?

Posted by Jatin Solanki 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Sneha Jha 7 years, 11 months ago

The rabi crops are sown around mid-November, after the monsoon rains are over, and harvesting begins in April/May.

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Prove inertia by Newton's second law of motion

Posted by Aranya Mondal 7 years, 11 months ago

CBSE > Class 08 > Science

0 answers

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What are the difference between green house effect and global warming

Posted by Anubhav Raj 7 years, 11 months ago

CBSE > Class 08 > Science

2 answers

Riya Singh 7 years, 11 months ago

Both are not same there are some differences between them.

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Sneha Jha 7 years, 11 months ago

Both r same

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Which can be used to replace broken handle of an electric iron.

Posted by Bikram Prasad 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Sneha Jha 7 years, 11 months ago

Bakelite

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What is green house effect ?explain

Posted by Somya Sarraf 7 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 11 months ago

A greenhouse is a place where plants are kept and its roof is covered either by glasses or by any other transparent object. In colder climates, in order to maintain a warm atmosphere for plants, they are kept in the closed glass houses. Through these glasses, sunlight will enter the house and later, the greenhouse won’t let the heat go out. Glass traps the heat. By this process, the temperature inside the greenhouse will be higher than the temperature outside.

The same phenomenon takes place in our atmosphere and it has the same effect like a greenhouse. When the UV (ultraviolet) radiations enter the earth, a part of them is absorbed by the earth and rest is reflected back to the atmosphere. Some gases like carbon dioxide, methane, nitrous oxide, water vapour, etc. trap the reflected UV radiations and don’t let the heat escape the atmosphere. This eventually elevates the temperature of the earth’s surface. This atmospheric effect is known as the greenhouse effect. The gases that are involved in the greenhouse effect are called the greenhouse gases.

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What is called the 'black gold'?

Posted by Achal Panchal 7 years, 11 months ago

CBSE > Class 08 > Science