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Light is incident normally on face AB of a prism as shown in figure. A liquid of refractive index μ is placed on the face AC of the prism. The prism is made of glass of refractive index 3/2. The limit of μ for which total internal reflection takes place on face AC is :
15
Nov
Light is incident normally on face AB of a prism as shown in figure. A liquid of refractive index μ is placed on the face AC of the prism. The prism is made of glass of refractive index 3/2. The limit of μ for which total internal reflection takes place on face AC is : [...]
Critical angle of glass is θ1 and that of water is θ2 . The critical angle for water and glass surface would be (μ g = 3/2, μw = 4/3).
15
Nov
Critical angle of glass is θ1 and that of water is θ2 . The critical angle for water and glass surface would be (μ g = 3/2, μw = 4/3). Critical angle of glass is θ1 and that of water is θ2 . The critical angle for water and glass surface would be (μ g [...]
A circular beam of light of diameter d=2cm falls on a plane refractive of glass. The angle of incidence is 60^∘ and refractive index of glass is μ=3/2. The diameter of the refracted beam is
15
Nov
A circular beam of light of diameter d=2cm falls on a plane refractive of glass. The angle of incidence is 60^∘ and refractive index of glass is μ=3/2. The diameter of the refracted beam is A circular beam of light of diameter d=2cm falls on a plane refractive of glass. The angle of incidence is [...]
In a practical wheat stone bridge circuit as shown, when one more resistance of 100Ω is connected in parallel with unknown resistance ‘x’, then ratio l1/l2 become ‘2’l1 is balance length , AB is a uniform wire. Then value of ‘x’ must be :
15
Nov
In a practical wheat stone bridge circuit as shown, when one more resistance of 100Ω is connected in parallel with unknown resistance ‘x’, then ratio l1/l2 become ‘2’l1 is balance length , AB is a uniform wire. Then value of ‘x’ must be : AB is a uniform wire. Then value of 'x' must be [...]
Which of the following gases turns the acidified potassium dichromate paper green (a) HCl (b) H2S (c) CO2 (d) SO2
15
Nov
Which of the following gases turns the acidified potassium dichromate paper green (a) HCl (b) H2S (c) CO2 (d) SO2 Which of the following gases turns the acidified potassium dichromate paper green (a) HCl (b) H2S (c) CO2 (d) SO2 November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Characteristic feature of alkali metals is (a) Good conductor of heat and electricity (b) High melting points
15
Nov
Characteristic feature of alkali metals is (a) Good conductor of heat and electricity (b) High melting points Characteristic feature of alkali metals is (a) Good conductor of heat and electricity (b) High melting points November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In certain matters lithium differs from other alkali metals, the main reason for this is (a) Small size of Li atom and Li+ ion
15
Nov
In certain matters lithium differs from other alkali metals, the main reason for this is (a) Small size of Li atom and Li+ ion In certain matters lithium differs from other alkali metals the main reason for this is (a) Small size of Li atom and Li+ ion November 15, 2020 Category: Uncategorised (JEE Advanced [...]
Circuit for the measurement of resistance by potentiometer is shown in figure. The galvanometer is first connected at point A and zero deflection is observed at length PJ=10cm. In second case, it is connected at point C and zero deflection is observed at a length 30 cm from P, then the unknown resistance X is .
15
Nov
Circuit for the measurement of resistance by potentiometer is shown in figure. The galvanometer is first connected at point A and zero deflection is observed at length PJ=10cm. In second case, it is connected at point C and zero deflection is observed at a length 30 cm from P, then the unknown resistance X is [...]
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Circuit for the measurement of resistance by potentiometer is shown in figure. The galvanometer is first connected at point A and zero deflection is observed at length PJ=10cm. In second case ,
it is connected at point C and zero deflection is observed at a length 30 cm from P ,
then the unknown resistance X is . ,
In the potentiometer arrangement shown, the driving cell A has emf ε and internal resistance r. The emf of the cell B is ε2 and internal resistance 2r. The potentiometer wire CD is 100 cm long. If balance is obtained with length CJ=l, then
15
Nov
In the potentiometer arrangement shown, the driving cell A has emf ε and internal resistance r. The emf of the cell B is ε2 and internal resistance 2r. The potentiometer wire CD is 100 cm long. If balance is obtained with length CJ=l, then In the potentiometer arrangement shown the driving cell A has emf [...]
With the increase in atomic weights, melting points of the alkali metals (a) Increase (b) Decrease (c) Remain constant (d) Do not show definite trend
15
Nov
With the increase in atomic weights, melting points of the alkali metals (a) Increase (b) Decrease (c) Remain constant (d) Do not show definite trend melting points of the alkali metals (a) Increase (b) Decrease (c) Remain constant (d) Do not show definite trend With the increase in atomic weights November 15, 2020 Category: Uncategorised [...]