Physics-
General
Easy
Question
Find the incorrect statement/s for a concave mirror producing a virtual image of the object.
- The linear magnification is always greater than one. Except at the pole
- The linear magnification is always less than one.
- The magnification tends to one as the object move nearer to the pole of the mirror.
- The distance of the object from the pole of the mirror is less than the focal length of mirror.
The correct answer is: The linear magnification is always less than one.
Related Questions to study
physics-
The load versus elongation graph for four wires of the same material is shown in the figure. The thinnest wire is represented by the line
The load versus elongation graph for four wires of the same material is shown in the figure. The thinnest wire is represented by the line
physics-General
physics-
In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
physics-General
physics-
A uniform ring is rotating about vertical axis with angular velocity 
initially. A point insect (S) having the same mass as that of the ring starts walking from the lowest point P1 and finally reaches the point P2 (as shown in figure). The final angular velocity of the ring will be equal to
A uniform ring is rotating about vertical axis with angular velocity initially. A point insect (S) having the same mass as that of the ring starts walking from the lowest point P1 and finally reaches the point P2 (as shown in figure). The final angular velocity of the ring will be equal to
physics-General
physics-
Which of the following combinations of three dimensionally different physical quantities P, Q, R can never be a meaningful quantity?
Which of the following combinations of three dimensionally different physical quantities P, Q, R can never be a meaningful quantity?
physics-General
physics-
A beam of white light is incident on a combinations of prisms with equal angles. In the out going beam the rainbow colours are observed as shown. Then
A beam of white light is incident on a combinations of prisms with equal angles. In the out going beam the rainbow colours are observed as shown. Then
physics-General
physics-
The P-V graph of two different samples having masses m1 and m2 of a gas for isothermal processes are shown in figure at temperatures T1 and T2 respectively
The P-V graph of two different samples having masses m1 and m2 of a gas for isothermal processes are shown in figure at temperatures T1 and T2 respectively
physics-General
physics-
When objects at different distances are seen by the eye, which of the following remain constant?
When objects at different distances are seen by the eye, which of the following remain constant?
physics-General
physics-
The energy of a tungsten atom with a vacancy in L shell is 11.3 KeV. Wavelength of 
photon for tungsten is 21.3 pm. If a potential difference of 62 KV is applied across the x-rays tube following characteristic x-rays will be produced.
The energy of a tungsten atom with a vacancy in L shell is 11.3 KeV. Wavelength of photon for tungsten is 21.3 pm. If a potential difference of 62 KV is applied across the x-rays tube following characteristic x-rays will be produced.
physics-General
physics-
The figure shows a graph between 
and ln | n |, where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is :
The figure shows a graph between and ln | n |, where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is :
physics-General
physics-
A resistance & ideal inductor is connected in the A.C. circuit. Here 
are the reading of three hotwire ideal voltmeter
A resistance & ideal inductor is connected in the A.C. circuit. Here are the reading of three hotwire ideal voltmeter
physics-General
physics-
The A.C. circuit shown in figure. Find the frequency (
) of the AC voltage source so that current through the source will be in same phase as of voltage of source.
The A.C. circuit shown in figure. Find the frequency () of the AC voltage source so that current through the source will be in same phase as of voltage of source.
physics-General
physics-
Find the power factor of the circuit
Find the power factor of the circuit
physics-General
physics-
In the figure the reading of voltmeter is
In the figure the reading of voltmeter is
physics-General
physics-
In the figure, if 
?
In the figure, if ?
physics-General
physics-
A block of mass ‘m’ is attached to a spring in natural length of spring constant ‘k’. The other end A of the spring is moved with a constant velocity v away from the block. Find the maximum extension in the spring
A block of mass ‘m’ is attached to a spring in natural length of spring constant ‘k’. The other end A of the spring is moved with a constant velocity v away from the block. Find the maximum extension in the spring
physics-General
