|
Explain the formation of rainbow
|
|
0
|
75343
|
October 19, 2016
|
|
Differentiate between soap and detergent
|
|
1
|
82404
|
September 21, 2016
|
|
With the help of a chemical equation, explain how a soda-acid fire extinguisher helps in putting out a fire
|
|
1
|
14816
|
August 5, 2019
|
|
What will be the length of a nichrome wire of resistance 5.0 ohm
|
|
1
|
2728
|
July 16, 2019
|
|
State laws of refraction
|
|
2
|
3299
|
June 12, 2019
|
|
What is Tyndall effect?
|
|
1
|
6092
|
June 12, 2019
|
|
State the two laws of reflection of light
|
|
2
|
2822
|
June 12, 2019
|
|
Draw a path of light ray passing through a prism. Label angle of incidence and angle of deviation in the ray diagram
|
|
1
|
1505
|
April 8, 2019
|
|
A student sees that needle indicates 17 divisions in ammeter while performing an experiment to verify Ohm’s law
|
|
1
|
2076
|
April 8, 2019
|
|
Student conducted an experiment to show CO2 is released during respiration. List two precautions?
|
|
1
|
1609
|
April 8, 2019
|
|
A student observed a permanent slide showing asexual reproduction in yeast
|
|
1
|
1967
|
April 8, 2019
|
|
Observe when you drop a few drops of acetic acid to a test tube containing: Phenolphthalein
|
|
1
|
993
|
April 5, 2019
|
|
(a) What do you understand by “Watershed Management”?
|
|
1
|
3613
|
April 5, 2019
|
|
(a) “Improvements in our lifestyle have resulted in greater amounts of waste generation.”
|
|
1
|
8995
|
April 5, 2019
|
|
(a) What is reactivity series?
|
|
1
|
1269
|
April 5, 2019
|
|
1. What kind of defect in vision is she suffering from?
|
|
1
|
2345
|
April 5, 2019
|
|
1. Draw a neat diagram of human brain and Label Medulla and Cerebellum
|
|
1
|
5170
|
April 5, 2019
|
|
Draw the structural formulae of all the possible isomers
|
|
1
|
723
|
April 5, 2019
|
|
In bow many ways one can join the models of six carbon atoms and fourteen hydrogen atoms
|
|
1
|
1747
|
April 5, 2019
|
|
Find the direction of magnetic field associated with a current carrying conductor
|
|
1
|
907
|
April 5, 2019
|
|
(a) To which category of diseases AIDS belong? Name its causative organism
|
|
1
|
7923
|
April 5, 2019
|
|
Why are fossils considered important in the study of evolution?
|
|
1
|
1312
|
April 5, 2019
|
|
“pH has a great importance in our daily life” explain by giving three examples
|
|
1
|
20057
|
April 5, 2019
|
|
Rohit focused the image of a candle flame on a white screen using a convex lens
|
|
1
|
3135
|
April 5, 2019
|
|
How do Mendel’s experiments show that traits may be dominant or recessive?
|
|
1
|
1090
|
April 5, 2019
|
|
Explain the ways in which glucose is broken down in absence of oxygen
|
|
1
|
7763
|
April 5, 2019
|
|
Differentiate between the Mendeleev’s periodic table and Modern periodic table
|
|
1
|
878
|
April 5, 2019
|
|
Name the electric device that converts mechanical energy into electrical energy
|
|
1
|
1245
|
April 5, 2019
|
|
Why is there a need to harness non-conventional sources of energy? Give two main reasons
|
|
1
|
818
|
April 5, 2019
|
|
An object of height 1.2 m is placed before a concave mirror of focal length 20 cm
|
|
1
|
9713
|
April 5, 2019
|