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On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1kΩ. How much was the resistance on the left slot before interchanging the resistances?
15
Nov
On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1kΩ. How much was the resistance on the left slot before interchanging the resistances? On interchanging the resistances the balance point of a meter bridge shifts to the left by [...]
Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO
15
Nov
Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
To verify Ohm’s law, a student is provided with a test resistor RT, a high resistance R1, a small resistance R2, two identical galvanometer G1andG2, and a variable voltage source V. The correct circuit to carry out the experiment is
15
Nov
To verify Ohm’s law, a student is provided with a test resistor RT, a high resistance R1, a small resistance R2, two identical galvanometer G1andG2, and a variable voltage source V. The correct circuit to carry out the experiment is a high resistance R1 a small resistance R2 a student is provided with a test [...]
Alloys of ………………. metal are light and strong and so are used in the manufacture of aeroplane parts (a) Cr (b) Sn (c) Fe (d) Mg
15
Nov
Alloys of ………………. metal are light and strong and so are used in the manufacture of aeroplane parts (a) Cr (b) Sn (c) Fe (d) Mg Alloys of ................... metal are light and strong and so are used in the manufacture of aeroplane parts (a) Cr (b) Sn (c) Fe (d) Mg November 15, 2020 [...]
When a current of 5mA is passed through a galvanometer having a coil of resistance 15Ω, it shows full scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into to voltmeter of range 0−10V is
15
Nov
When a current of 5mA is passed through a galvanometer having a coil of resistance 15Ω, it shows full scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into to voltmeter of range 0−10V is it shows full scale deflection. The value of the resistance to [...]
The alkaline earth metal with the least density value is (a) Mg (b) Be (c) Sr (d) Ca (e) Ba
15
Nov
The alkaline earth metal with the least density value is (a) Mg (b) Be (c) Sr (d) Ca (e) Ba The alkaline earth metal with the least density value is (a) Mg (b) Be (c) Sr (d) Ca (e) Ba November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Which pair of the following chlorides do not impart colour to the flame (a) BeCl2 and SrCl2 (b) BeCl2 and MgCl2 (c) CaCl2 and BaCl2 (d) BaCl2 and SrCl2
15
Nov
Which pair of the following chlorides do not impart colour to the flame (a) BeCl2 and SrCl2 (b) BeCl2 and MgCl2 (c) CaCl2 and BaCl2 (d) BaCl2 and SrCl2 Which pair of the following chlorides do not impart colour to the flame (a) BeCl2 and SrCl2 (b) BeCl2 and MgCl2 (c) CaCl2 and BaCl2 (d) [...]
Sources 1 and 2 emit lights of different wavelengths whereas sources 3 and 4 emit light of different intensities. The coherence
15
Nov
Sources 1 and 2 emit lights of different wavelengths whereas sources 3 and 4 emit light of different intensities. The coherence Sources 1 and 2 emit lights of different wavelengths whereas sources 3 and 4 emit light of different intensities. The coherence November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]
Light of wavelength λ=5890Å fall on a double-slit arrangement having separation d=0.2mm. A thin lens of focal length f=1m is placed near the slits. The linear separation of fringes on a screen placed in the focal plane of the lens is
15
Nov
Light of wavelength λ=5890Å fall on a double-slit arrangement having separation d=0.2mm. A thin lens of focal length f=1m is placed near the slits. The linear separation of fringes on a screen placed in the focal plane of the lens is In a YDSE with identical slits the intensity at the same point is the [...]
Two light waves having the same wavelength λ in vacuum are in phase initially. Then the first ray travels a path of length L1 through a median of refractive index μ1. The second ray travels a path of length L2 through a medium of refractive index μ2 . The two waves are then combined to observe interference effects. The phase difference between the two, when they interfere, is
15
Nov
Two light waves having the same wavelength λ in vacuum are in phase initially. Then the first ray travels a path of length L1 through a median of refractive index μ1. The second ray travels a path of length L2 through a medium of refractive index μ2 . The two waves are then combined to [...]