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Double convex lenses are to be manufactured from a glass of refractive index 1.55, with both faces of same radius of curvature. What is the radius of curvature required if the focal length is to be 20 cm?
13
Nov
Double convex lenses are to be manufactured from a glass of refractive index 1.55, with both faces of same radius of curvature. What is the radius of curvature required if the focal length is to be 20 cm? Double convex lenses are to be manufactured from a glass of refractive index 1.55 with both faces [...]
In the circuit shown if figure, XY is potentiometer wire 100cm long. The circuit is connected as shown. With switches S2 and S3 open, a balance point is found at Z. After switched S1 has remaind closed for some time, it is found that contact at Z must be moved towards Y to maintain a balance. which of the following in most likely reason for this ?
13
Nov
In the circuit shown if figure, XY is potentiometer wire 100cm long. The circuit is connected as shown. With switches S2 and S3 open, a balance point is found at Z. After switched S1 has remaind closed for some time, it is found that contact at Z must be moved towards Y to maintain a [...]
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a balance point is found at Z. After switched S1 has remaind closed for some time ,
In the circuit shown if figure ,
it is found that contact at Z must be moved towards Y to maintain a balance. which of the following in most likely reason for this ? ,
XY is potentiometer wire 100cm long. The circuit is connected as shown. With switches S2 and S3 open ,
In the given circuit , R1≠R2 and the reading of the voltmeter is the same, irrespective of whether the switch S is open or closed. Then, which of the following is correct?
13
Nov
In the given circuit , R1≠R2 and the reading of the voltmeter is the same, irrespective of whether the switch S is open or closed. Then, which of the following is correct? In the given circuit irrespective of whether the switch S is open or closed. Then R1≠R2 and the reading of the voltmeter is [...]
Calculate the energy stored in the capacitor of capacitance 2 muF . The voltmeter gives a reading of 15 V and the ammeter A reads 15 mA.
13
Nov
Calculate the energy stored in the capacitor of capacitance 2 muF . The voltmeter gives a reading of 15 V and the ammeter A reads 15 mA. Calculate the energy stored in the capacitor of capacitance 2 muF . The voltmeter gives a reading of 15 V and the ammeter A reads 15 mA. November [...]
In the arrangement shown in figure when the switch S2 is open, the galvanometer shown no deflection for l=L/2. When the switch S2 is closed, the galvanometer shown no deflection for l = 5 L/12. The internal resistance (r) of 6 V cell, and the emf E of the other battery are respectively
13
Nov
In the arrangement shown in figure when the switch S2 is open, the galvanometer shown no deflection for l=L/2. When the switch S2 is closed, the galvanometer shown no deflection for l = 5 L/12. The internal resistance (r) of 6 V cell, and the emf E of the other battery are respectively and the [...]
A prism is made of glass of unknown refractive index. A parallel beam of light incident on a face of the prism. By rotating the prism, the angle of minimum deviation is measured to be 40^o. What is the refractive index of the material of the prism? The refracting angle of the prism is 60 degree. If the prism is placed in water (refractive index 1.33), predict the new angle of minimum deviation of a parallel beam of light. The refracting angle of the prism is 60^o.
13
Nov
A prism is made of glass of unknown refractive index. A parallel beam of light incident on a face of the prism. By rotating the prism, the angle of minimum deviation is measured to be 40^o. What is the refractive index of the material of the prism? The refracting angle of the prism is 60 [...]
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A mass attached to a spring is free to oscillate ,
A prism is made of glass of unknown refractive index. A parallel beam of light incident on a face of the prism. By rotating the prism ,
A small candle ,
In Millikan's oil drop experiment ,
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 ,
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water ,
what is the speed of ejection of the liquid through the holes ? ,
with angular velocity ω ,
Figures (a) and (b) show the refraction of a ray in air incident at 60^o with the normal to a glass-air and water-air interface, respectively. Predict the angle of refraction in a glass when the angle of incidence in water is 45^o with the normal to a water-glass interface [Fig.(c)].
13
Nov
Figures (a) and (b) show the refraction of a ray in air incident at 60^o with the normal to a glass-air and water-air interface, respectively. Predict the angle of refraction in a glass when the angle of incidence in water is 45^o with the normal to a water-glass interface [Fig.(c)]. Figures (a) and (b) show [...]
A small bulb is placed at the bottom of a tank containing water to a depth of 80 cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)
13
Nov
A small bulb is placed at the bottom of a tank containing water to a depth of 80 cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.) A mass attached to [...]
Tags:
A mass attached to a spring is free to oscillate ,
A small candle ,
In Millikan's oil drop experiment ,
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 ,
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water ,
what is the speed of ejection of the liquid through the holes ? ,
with angular velocity ω ,
Which of the following is the smallest cation (a) Na+ (b) Mg +2 (c) Ca +2 (d) Al +3
13
Nov
Which of the following is the smallest cation (a) Na+ (b) Mg +2 (c) Ca +2 (d) Al +3 Which of the following is the smallest cation (a) Na+ (b) Mg +2 (c) Ca +2 (d) Al +3 November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
As compared to potassium, sodium has (a) Lower electronegativity (b) Higher ionization potential (c) Greater atomic radius (d) Lower melting point
13
Nov
As compared to potassium, sodium has (a) Lower electronegativity (b) Higher ionization potential (c) Greater atomic radius (d) Lower melting point As compared to potassium sodium has (a) Lower electronegativity (b) Higher ionization potential (c) Greater atomic radius (d) Lower melting point November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]