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Ask QuestionPosted by Anwar Hussain Anu Bhagalpuri 5 years, 11 months ago
- 3 answers
Yogita Ingle 5 years, 11 months ago
A pinhole camera is a simple camera, without lens, in the shape of a box. One of the sides has a small hole and it produces an inverted image of the outside world at other side.
- The box should be painted black from outside and inside for better clarity.
- The object whose image is to be seen should be in bright light.
- Smaller the hole, sharper the image.
- Temporary Black and White images are formed on the screen if a tracing paper is used. Permanent colored and b & w images can be obtained using photographic films instead of tracing paper.
- In the below diagram, two boxes are placed one inside the other. The image of the outer object is created inverted on the inner box translucent screen.
Posted by Anwar Hussain Anu Bhagalpuri 5 years, 11 months ago
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Sidrah Mahvish 5 years, 11 months ago
Posted by Rohit Badakumar 5 years, 11 months ago
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B A 5 years, 11 months ago
Vibhavari Patel 5 years, 11 months ago
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Posted by Mahendra Jhajharia 5 years, 11 months ago
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Manisha Ji 5 years, 11 months ago
Mahendra Jhajharia 5 years, 11 months ago
Posted by Devansh Garg 5 years, 11 months ago
- 4 answers
Posted by L Saraf 5 years, 11 months ago
- 1 answers
Meghna Thapar 5 years, 11 months ago
We observe many things around us having certain properties such as its state (solid, liquid or gas). When one or more properties of a thing become different, we say it has changed or a change has taken place in it. Some important changes that we observe in our everyday life are:
- Formation of curd from milk.
- Burning of fuels
- Cooking of food
- Drying of clothes
- Rusting of iron.
There must be a cause which brings change in an object like heat, light, electricity, force. Heat causes a change in the state of solid to liquid in case of water.
All changes occurring around us can be categorized into two types – reversible and irreversible.
Posted by Chaitanya Sahu 5 years, 11 months ago
- 6 answers
Rudraksh Paliwal 5 years, 11 months ago
B A 5 years, 11 months ago
Rabindra Nath Dakua 5 years, 11 months ago
Mankrish Pal Singh. 5 years, 11 months ago
Suraj Jaiswal 5 years, 11 months ago
Posted by Jain News Banswara 5 years, 11 months ago
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Posted by Priyanshi Kumari 5 years, 11 months ago
- 1 answers
Yogita Ingle 5 years, 11 months ago
Geothermal energy is basically produce from the earth. Temperature below the earth surface is very large compare to other places, It can be happen due to other reason. This heat from earth mantle can be use to produce heat.
Cold water is sent through pipes in the heated area of earth mantle and the water gets heated up due to high temperature. Steam produced from this procedure can be use to rotate turbine which can produce electricity.
Natural geyser is one of it's example.
Posted by Priyanshi Kumari 5 years, 11 months ago
- 2 answers
Yogita Ingle 5 years, 11 months ago
Geothermal energy is basically produce from the earth. Temperature below the earth surface is very large compare to other places, It can be happen due to other reason. This heat from earth mantle can be use to produce heat.
Cold water is sent through pipes in the heated area of earth mantle and the water gets heated up due to high temperature. Steam produced from this procedure can be use to rotate turbine which can produce electricity.
Natural geyser is one of it's example.
Posted by Harshita Tanwar 5 years, 11 months ago
- 3 answers
Geeta Kulkarni 5 years, 11 months ago
Posted by Latha Gv 5 years, 11 months ago
- 1 answers
Meghna Thapar 5 years, 8 months ago
Silapathikaram is the first Kappiyam (epic) among the five in Tamil literature. It belongs to the Sangam Period. Madhavi was born in a lineage of courtesans, and was an accomplished dancer. Madhavi is one of the three main characters in Silappatikaram, along with Kannagi and Kovalan. Silappathikaram. Silappathikaram, (Tamil: “The Jeweled Anklet”)also spelled Silappatikaram, the earliest epic poem in Tamil, written in the 5th–6th century ad by Prince Ilanko Adikal (Ilango Adigal).
Posted by Vegi Lakshmi Pavitra 5 years, 11 months ago
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Posted by Ruby Chaudhary 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
The meeting point of a pair of sides is called a vertex. The end points of the same side are adjacent vertices. A four sided polygon is a quadrilateral. It has 4 sides, 4 vertices and 4 angles. Structures like electric towers make use of triangular shapes and not quadrilaterals as the triangle is very rigid and hence a strong shape. When we push inward at any one vertex of the triangle the triangle does not get distorted.
Posted by Pushti Ramani 5 years, 11 months ago
- 1 answers
Yogita Ingle 5 years, 11 months ago
(i) Tropical deciduous forests form a natural cover almost all over India, particularly by between regions of 200 and 75 cm of annual rainfall. Hence they are called the monsoon forests par excellence.
(ii) They are economically very important because of timber like sal and teak.
(iii) They need care as they are less fire resistant.
(iv) They are of two types-moist and dry. Moist forests are found on the eastern slopes of Western Ghats, North eastern parts of the Peninsular Chhota Nagpur plateau and along the Shiwaliks.
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Devapriya K 5 years, 11 months ago
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Posted by Garvit Mahiya 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Weeding is the process to remove out the weeds. Weeds are unwanted plants which grown along the useful crops. Weeding is required because weeds are competitive plants as they reduce the useful crop yield by acquiring space, fertilizers and nutrients from the soil.
Posted by Twinkle Garg 5 years, 11 months ago
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Posted by Tanvir Sheikh 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
The nutrients which mainly give energy to our body – Carbohydrates and Fats.
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Suhani Naik 5 years, 11 months ago
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