10 Dec | Maths | 3D Geometry | 4:00 PM :- https://www.youtube.com/live/OuMqd0bRfhM?si=cBqOkpoFuoAPVo1K
10 Dec | Math | 3D Geometry | 4:00 PM :- https://www.youtube.com/live/OuMqd0bRfhM?si=cBqOkpoFuoAPVo1K
Chapter - Ray Optics
Critical angle of incidence for a pair of optical media is 45ยฐ.The refractive indices of first and second media are in the ratio:
Critical angle of incidence for a pair of optical media is 45ยฐ.The refractive indices of first and second media are in the ratio:
Anonymous Quiz
15%
1 : 2
53%
1 : โ2
15%
2 : 1
17%
โ2 : 1
Chapter - GOC
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
Anonymous Quiz
24%
separate CuO as CuSiOโ
31%
remove calcium as CaSiOโ
33%
decrease the temperature needed for roasting of CuโS
12%
remove FeO as FeSiOโ
Check out this amazing ๐คฉ Question of the Day from the Chapter :- Coordination Compounds
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Chapter - Sequences and Series
If the sum and product of four positive consecutive terms of a G.P., are 126 and 1296, respectively, then the sum of common ratios of all such GPs is
If the sum and product of four positive consecutive terms of a G.P., are 126 and 1296, respectively, then the sum of common ratios of all such GPs is
Anonymous Quiz
17%
7
52%
9/2
20%
3
11%
14
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Chapter-Application of derivatives
A wire of length 20 m is to be cut into two pieces.A piece of length lโ is bent to make a square of area Aโ and the other piece of length lโ is made into a circle of area Aโ.If 2Aโ+3Aโ is minimum then(ฯlโ):lโ is equal to
A wire of length 20 m is to be cut into two pieces.A piece of length lโ is bent to make a square of area Aโ and the other piece of length lโ is made into a circle of area Aโ.If 2Aโ+3Aโ is minimum then(ฯlโ):lโ is equal to
Anonymous Quiz
22%
6 : 1
41%
3 : 1
27%
1 : 6
10%
4 : 1
Check out this amazing ๐คฉ Question of the Day from the Chapter :- Wave optics
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Link - https://vdnt.in/GmTzw
Chapter - Properties of matter
An aluminium rod with Young's modulus Y= 7.0 x 10ยนโฐ N/mยฒ undergoes elastic strain of 0.04 %. The energy per unit volume stored in the rod in SI unit is:
An aluminium rod with Young's modulus Y= 7.0 x 10ยนโฐ N/mยฒ undergoes elastic strain of 0.04 %. The energy per unit volume stored in the rod in SI unit is:
Anonymous Quiz
22%
5600
38%
2800
30%
11200
9%
8400
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Chapter - Thermodynamics
The correct order of bond enthalpy (kJ mol-ยน) is :
The correct order of bond enthalpy (kJ mol-ยน) is :
Anonymous Quiz
17%
Si โ Si > C โ C > Sn โ Sn > Ge โ Ge
34%
Si โ Si > C โ C > Ge โ Ge > Sn โ Sn
28%
C โ C > Si โ Si > Sn โ Sn > Ge โ Ge
22%
C โ C > Si โ Si > Ge โ Ge > Sn โ Sn
Check out this amazing ๐คฉ Question of the Day from the Chapter :- Indefinite Integrals
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Chapter - Ray Optics
An effective power of a combination of 5 identical convex lenses which are kept in contact along the principal axis is 25 D .Focal length of each of the convex lens is:
An effective power of a combination of 5 identical convex lenses which are kept in contact along the principal axis is 25 D .Focal length of each of the convex lens is:
Anonymous Quiz
22%
50 cm
41%
20 cm
25%
25 cm
11%
500 cm
Chapter - Application of derivatives
The sum of the abosolute maximum and minimum values of the function f(x) = |xยฒ - 5x + 6| - 3x + 2 in the interval [-1, 3] is equal to:
The sum of the abosolute maximum and minimum values of the function f(x) = |xยฒ - 5x + 6| - 3x + 2 in the interval [-1, 3] is equal to:
Anonymous Quiz
22%
10
40%
12
26%
13
12%
24
Check out this amazing ๐คฉ Question of the Day from the Chapter :- Chemical Bonding and molecular structure
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