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0
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137
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The light enters from air to glass having refractive index 1.5. The speed of light in glass is
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
586
views
For a convex mirror the image distance (v) = 5 cm, focal length (f) = 10 cm and height of the image (h) = 7.5 cm.
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
283
views
If all the organisms of one trophic level in a food chain die, what would be its impact on the population of organisms
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
109
views
The chemicals that are non-degradable, get progressively accumulated at each trophic level, and their concentration is
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
4.1k
views
Assertion (A): Copper ions migrate from the anode to the cathode during electrorefining of copper.
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
3.4k
views
Assertion (A): A lot of difference in the concentrations of ions was observed by a scientist between the fluid in xylem
answered
Nov 10, 2023
in
Science
cbse
class 10
0
votes
512
views
Which of the following structures correctly represent the electron dot structure of a Nitrogen molecule?
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
3.5k
views
Which of the following observations is correct for the above given experimental diagram?
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
2.0k
views
The ratio (x:y) of reactants Fe and H2O in the given balanced chemical equation is xFe(s) + yH2O(g) → Fe3O4 (s)
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
228
views
Washing soda is hydrated a) Sodium hydrogen carbonate b) Sodium carbonate
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
581
views
The metal X does not react with cold water but floats on hot water with formation of colourless bubbles.
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
3.0k
views
Which of the following correctly represents ‘X’ in the above chemical changes? (a) Ethane (b) Ethene (c) Ethyne
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
1.9k
views
Which of the following tests is given by the gas ‘X’ produced in the set up shown? (a) Lime water turns milky white
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
432
views
Gastric juice is secreted by gastric glands and contains hydrochloric acid, mucus, and pepsin.
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
302
views
A cross between pure tall and pure short pea plants gives hybrid tall pea plants in the first generation.
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
133
views
During exhalation, the exchange of gases takes place between
answered
Nov 9, 2023
in
Science
cbse
class 10
0
votes
92
views
Provide evidence to support the claim that print culture helped in the growth of nationalism in India?
answered
Nov 8, 2023
in
Social science
cbse
class 10
0
votes
2.2k
views
Mr. Y from a city in India visits a rural area and finds five people working in a small agricultural farm.
answered
Nov 8, 2023
in
Social science
cbse
class 10
0
votes
2.1k
views
Sunil and Raman did their graduation from the same college. Sunil got employed in an unorganised sector
answered
Nov 8, 2023
in
Social science
cbse
class 10
0
votes
84
views
The movement broke colonial laws and also refused cooperation with the British.
answered
Nov 7, 2023
in
Social science
cbse
class 10
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