List of top Physics Questions on Stereoisomers asked in AP EAMCET

If the ratio of lengths, radii, and Young's moduli of steel and brass wires are \(a\), \(b\), and \(c\) respectively, their respective loads are in the ratio 5:3, then the corresponding ratio of increase in their lengths would be:

If the potential difference across \(PQ\) is 4V, the potential difference across \(A\) and \(B\) in the given figure is:


 

A stone is projected at an angle of 30° to the horizontal. The ratio of kinetic energy at the point of projection to the potential energy at the highest point of flight will be:
The following statement is true in case of total internal reflection:

A train moves towards a stationary observer with speed 72 m/s\(^{-1}\). The train blows its horn and its frequency heard by observer is \(f_1\). 
If the train speed is reduced to 36 m/s\(^{-1}\), the frequency heard by observer is \(f_2\). Then \( \frac{f_1}{f_2} \) is (given \(v = 340 { m/s}^{-1}\)):

Force is given by the expression \( F = A \cos(Bx) + C \cos(Dt) \), where 'x' is displacement and 't' is time. The dimensions of \( \frac{D}{B} \) are the same as that of:
A piston divides a closed gas cylinder into two parts. Initially, the piston is kept pressed such that one part has pressure P and volume 5V and the other part has pressure 8P and volume V. The piston is now left free. The new pressure if the process is isothermal:
If the angular momentum of an electron in the second orbit of a hydrogen atom is \(J\), then the angular momentum of an electron in the third excited state of hydrogen is:

Young double slit arrangement is placed in a liquid medium of 1.2 refractive index. Distance between the slits and screen is 2.4 m. 
Slit separation is 1 mm. The wavelength of incident light is 5893 Å. The fringe width is:

Find the least horizontal force \( P \) to start motion of any part of the system of three blocks resting upon one another as shown in the figure. The weights of blocks are \( A = 300 \, {N}, B = 100 \, {N}, C = 200 \, {N} \). The coefficient of friction between \( A \) and \( C \) is 0.3, between \( B \) and \( C \) is 0.2 and between \( C \) and the ground is 0.1.


 

A man of mass 70 kg jumps to a height of 0.8 m from the ground, then the momentum transferred by the ground to the man is 
(g = 10 m/s\(^{-2}\)):

For an amplitude modulated wave, the maximum and minimum amplitudes are respectively 16 V and 4 V. The modulation index is:

Three logic gates are connected as shown in the figure. If the inputs are \(A = 1\), \(B = 0\) and \(C = 0\) then the values of \(y_1\), \(y_2\) and \(y_3\) respectively are: 


 

The work function of a photosensitive metal surface is \(6.4 \times 10^{-19} \, {J}\). The maximum kinetic energy of the emitted photoelectrons when electromagnetic radiation of wavelength 1240 Å incidents on the metal surface is nearly:
A resistor of resistance \( R \), an inductor of inductive reactance \( 2R \), and a capacitor of capacitive reactance \( 3R \) are connected in series to an ac source. The power factor of the series LCR circuit is:
A wire of length 100 cm is bent in the form of a circular coil of 5 turns and another wire of length 60 cm is bent in the form another circular coil of 4 turns. If the same current flows through the two coils, then the ratio of the magnetic fields induced at the centres of the two coils is:
A geyser uses natural gas as fuel. It heats water flowing at the rate of 3.0 liters per minute from 27°C to 77°C. The approximate rate of consumption of the fuel, if the heat of combustion of gas fuel is \(4.0 \times 10^4 { J/g}^{-1}\):

A glass capillary tube with a radius \( r = 0.02 \, {cm} \) is immersed into water to a depth of \( d = 2 \, {cm} \). To blow an air bubble out of the lower end of the tube, the pressure required is: 
Given:
Surface tension \( T = 7 \times 10^{-2} \, {N/m}^{-1} \)
Density of water \( \rho = 10^3 \, {kg/m}^{-3} \)
Acceleration due to gravity \( g = 10 \, {m/s}^{-2} \)

Two bodies of masses \( m_1 \) and \( m_2 \) are initially at rest at an infinite distance apart. They are then allowed to move towards each other under mutual gravitational attraction. The relative velocity of approach at a separation distance \( r \) between them is:
A spring with spring constant \( K \) stores 5 J energy when stretched by 25 cm. It was fixed at one end in vertical position and the other end is attached by mass \( m \). Its frequency is 5 oscillations/sec. Then the values of \( m \) and \( K \) are:

A thin circular ring and a circular disc have the same mass and moment of inertia about their centers perpendicular to the plane. 
Then the ratio of their radii is:

A truck of mass 1200 kg moves over an inclined plane raising 1 in 20, with a speed of 18 kmph. The power of the engine is 
(g = 10 m/s\(^{-2}\)):