Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A sphere, a cube and a thin circular pate are heated to the same temperature. If they are made of same material and have equal masses, determine which of these three objects
25
Oct
A sphere, a cube and a thin circular pate are heated to the same temperature. If they are made of same material and have equal masses, determine which of these three objects a cube and a thin circular pate are heated to the same temperature. If they are made of same material and have equal [...]
An indirectly heated filament is radiating maximum energy of wavelength 2.16 * 10^-5 cm. Find the net amount of heat energy lost per second per unit area. The temperature of the
25
Oct
An indirectly heated filament is radiating maximum energy of wavelength 2.16 * 10^-5 cm. Find the net amount of heat energy lost per second per unit area. The temperature of the An indirectly heated filament is radiating maximum energy of wavelength 2.16 * 10^-5 cm. Find the net amount of heat energy lost per second [...]
In Newton’s law of cooling in the form d delta theta / dt = -k delta theta what factors does the constant k depend upon ? What are the dimensions of k ?
25
Oct
In Newton’s law of cooling in the form d delta theta / dt = -k delta theta what factors does the constant k depend upon ? What are the dimensions of k ? In Newton's law of cooling in the form d delta theta / dt = -k delta theta what factors does the constant [...]
The spectrum of a black body at two temperatures 27 C and 327 C is shown in the figure. Let A1 and A2 be the areas under the two curves, respectively. Find the value of A2/A1.
25
Oct
The spectrum of a black body at two temperatures 27 C and 327 C is shown in the figure. Let A1 and A2 be the areas under the two curves, respectively. Find the value of A2/A1. respectively. Find the value of A2/A1. The spectrum of a black body at two temperatures 27 C and 327 [...]
The initial temperature of a body is 80 C. If its temperature falls to 64 C in 5 minutes and to 52 C in 10 minutes. Find the temperature of surrounding.
25
Oct
The initial temperature of a body is 80 C. If its temperature falls to 64 C in 5 minutes and to 52 C in 10 minutes. Find the temperature of surrounding. The initial temperature of a body is 80 C. If its temperature falls to 64 C in 5 minutes and to 52 C in [...]
A calorimeter of mass 0.2 kg and specific heat 900 J/Kg-K contains 0.5 kg of a liquid of specific heat 2400 J / kg-K. Its temperature falls from 60 C to 55 C in one minute. Find the rate of cooling.
25
Oct
A calorimeter of mass 0.2 kg and specific heat 900 J/Kg-K contains 0.5 kg of a liquid of specific heat 2400 J / kg-K. Its temperature falls from 60 C to 55 C in one minute. Find the rate of cooling. A calorimeter of mass 0.2 kg and specific heat 900 J/Kg-K contains 0.5 kg [...]
In the figure below , the switches s 1 and s 2 are closed simultaneously at t = 0 and a current starts to flow in the circuit. Bothe the batteries have the same magnitude of the electromotive force (emf ) and the polarities are as indicated in the figure.
24
Oct
In the figure below , the switches s 1 and s 2 are closed simultaneously at t = 0 and a current starts to flow in the circuit. Bothe the batteries have the same magnitude of the electromotive force (emf ) and the polarities are as indicated in the figure. In the figure below In [...]
A source of constant voltage V is connected to a resistance R and two ideal inductors L 1 and L 2 through a switch S as shown. There is no mutual inductance between the two inductors. The switch S is initially open. At t=0, the switch is closed and current begins to flow. Which of the following options is/are correct?
24
Oct
A source of constant voltage V is connected to a resistance R and two ideal inductors L 1 and L 2 through a switch S as shown. There is no mutual inductance between the two inductors. The switch S is initially open. At t=0, the switch is closed and current begins to flow. [...]
A conducting loop in the shape of a right angled isosceles triangle of height 10 cm is kept such that 90(∘) vertex is very close to an infinitely long conducting wire (see the figure). The wire is electrically insulated from the loop. The hypotenuse of the triangle is parallel to the wire. Current in the triangular loop is in counterclockwise direction and increased at a constant rate of 10 A/s. Which of the following statement(s) is(are) true?
24
Oct
A conducting loop in the shape of a right angled isosceles triangle of height 10 cm is kept such that 90(∘) vertex is very close to an infinitely long conducting wire (see the figure). The wire is electrically insulated from the loop. The hypotenuse of the triangle is parallel to the wire. Current in the [...]
An inductor (L =0.03 H) and a resistor (R=0.15 k(Ω)) are connected in series to a battery of 15 V EMF in a circuit shown below. The key K1 is opened and Key K2 is closed simultaneously. At t = 1 ms, the current in the circuit will be (e5 = 150)
24
Oct
An inductor (L =0.03 H) and a resistor (R=0.15 k(Ω)) are connected in series to a battery of 15 V EMF in a circuit shown below. The key K1 is opened and Key K2 is closed simultaneously. At t = 1 ms, the current in the circuit will be (e5 = 150) An inductor (L [...]