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If the angle between the mirror and the reflected ray is 23∘, what is the angle of incidence of the incidence ray?
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Draw a figure showing the following.
- Incident Ray
- Normal
- Angle of incidence
- Angle of reflection
- Point of incidence
- Reflected ray
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Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
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Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Concept: undefined >> undefined
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Concept: undefined >> undefined
Read the passage and answer the questions.
| Master 'X' is a 3-year-old child. He is living with his family in a slum. A public toilet is present near his house. His father is a drunkard. His mother does not know the importance of a balanced diet. |
- Master 'X' can suffer from which different possible diseases in the above conditions
- How will you help him and his family in this situation?
- Which disease can occur to the father of master 'X'?
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Enlist the names and composition of the medicines present at your home.
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An electric current flowing in a wire creates ______ around the wire.
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There are about _________ stars in our galaxy.
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Prepare a chart showing 'Do's' and 'don'ts' at the time of the earthquake.
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What are the specifications of an earthquake proof building?
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Is there any relations between dam and earthquake? Explain.
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Give scientific reasons.
It is safer to find shelter under things like a bed, table at the time of the earthquake.
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Give scientific reasons.
Don't use lifts at the time of earthquakes.
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Give scientific reasons.
The foundation of earthquake-proof building is separated from other land.
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If a crowd gathers at the place of an earthquake, what would be the difficulties in relief work?
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Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Concept: undefined >> undefined
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Rusting of iron is a ______ chemical change.
Concept: undefined >> undefined
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.
Concept: undefined >> undefined
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
A colourless solution of calcium hydroxide in a test tube turns ______ on blowing in it through a blow tube for some time.
Concept: undefined >> undefined
