Physics-
General
Easy
Question
The load versus strain graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line
- OB
- OA
- OD
- OC
The correct answer is: OB
Related Questions to study
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The distribution of relative intensity I (
) of blackbody radiation from a solid body versus the wavelength is shown in the figure. If the Wien displacement law constant is 
mK, what is the approximate temperature of the object?
The distribution of relative intensity I () of blackbody radiation from a solid body versus the wavelength is shown in the figure. If the Wien displacement law constant is mK, what is the approximate temperature of the object?
physics-General
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Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
physics-General
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Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
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The formula of ferrocene is
The formula of ferrocene is
chemistry-General
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A uniform rod having length L, is made of material having density r, coefficient of thermal expansion a and young's modulus Y. It is placed between two vertical walls having separation L and coefficient of friction m. What is the minimum rise in temperature so that the rod does not falls down on releasing.
A uniform rod having length L, is made of material having density r, coefficient of thermal expansion a and young's modulus Y. It is placed between two vertical walls having separation L and coefficient of friction m. What is the minimum rise in temperature so that the rod does not falls down on releasing.
physics-General
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S1 & S2 are two coherent sources of sound. OA = OB. AB = 2.7 , when is the wave length of sound waves. Number of points of maximum intensity as one moves around the circular path centered at O shown in the figure will be
S1 & S2 are two coherent sources of sound. OA = OB. AB = 2.7 , when is the wave length of sound waves. Number of points of maximum intensity as one moves around the circular path centered at O shown in the figure will be
physics-General
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S1 & S2 are two coherent sources of sound having no initial phase difference. The velocity of sound is 330 m/s. No minima will be formed on the line passing through S2 and perpendicular to the line joining S1 and S2 , if the frequency of both the sources is:
S1 & S2 are two coherent sources of sound having no initial phase difference. The velocity of sound is 330 m/s. No minima will be formed on the line passing through S2 and perpendicular to the line joining S1 and S2 , if the frequency of both the sources is:
physics-General
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A string consists of two parts attached at x = 0. The right part of the string 
has mass m per unit length and the left part of the string 
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A string consists of two parts attached at x = 0. The right part of the string has mass m per unit length and the left part of the string has mass ml per unit length. The string tension is T. If a wave of unit amplitude travels along the left part of the string, as shown in the figure, what is the amplitude of the wave that is transmitted to the right part of the string?
physics-General
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The shape of a string on which standing waves are produced at t = 0 is shown here. The suitable equation of standing wave can be
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physics-General
physics-
In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (a)
The block is now divided into two blocks (with M1 + M2 = M) and the apparatus is rearranged as shown in figure b. If the speeds of transverse waves in the two strings are equal the values of M1 and M2 will be respectively
In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (a)
The block is now divided into two blocks (with M1 + M2 = M) and the apparatus is rearranged as shown in figure b. If the speeds of transverse waves in the two strings are equal the values of M1 and M2 will be respectively
physics-General
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In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (a)
The ratio of speeds of transverse wave in the string 1 to that of string 2 is
In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (a)
The ratio of speeds of transverse wave in the string 1 to that of string 2 is
physics-General
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The graph shows a wave travelling to the right with a velocity of 4m/s. The equation that best represent the wave is
The graph shows a wave travelling to the right with a velocity of 4m/s. The equation that best represent the wave is
physics-General
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The figure shows a simple harmonic progressive transverse wave, progressing towards the right. The particle having the maximum acceleration directed downwards is represented by
The figure shows a simple harmonic progressive transverse wave, progressing towards the right. The particle having the maximum acceleration directed downwards is represented by
physics-General
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In figure shown on the right above, the spring constant is K. The mass of the upper disc is m and that of the lower disc is 3m. The upper block is depressed down from its equilibrium position by a distance d and released at t =0.
Suppose 
= 2mg/K. Then, the time ‘t’ at which the energy in spring in zero for first time is
In figure shown on the right above, the spring constant is K. The mass of the upper disc is m and that of the lower disc is 3m. The upper block is depressed down from its equilibrium position by a distance d and released at t =0.
Suppose = 2mg/K. Then, the time ‘t’ at which the energy in spring in zero for first time is
physics-General
physics-
In figure shown on the right above, the spring constant is K. The mass of the upper disc is m and that of the lower disc is 3m. The upper block is depressed down from its equilibrium position by a distance d and released at t =0.
Suppose d = 5mg/K. Then, the velocity of ‘m’ when normal reaction on 3m is mg is
In figure shown on the right above, the spring constant is K. The mass of the upper disc is m and that of the lower disc is 3m. The upper block is depressed down from its equilibrium position by a distance d and released at t =0.
Suppose d = 5mg/K. Then, the velocity of ‘m’ when normal reaction on 3m is mg is
physics-General
