TS EAMCET 2020 (Online) 14th September Morning Shift

A small object is placed in the air, at a distance 45 cm from a convex refracting surface of radius of curvature 15 cm . If the surface separates air from glass of refractive index 1.5, then the position of image is

The current gain of a transistor is 0.98 . If the transistor is used in a common emitter arrangement what would be the change in collector current corresponding to a change of 0.5 mA in the base current?

In a $p-n-p$ transistor, the current carriers are

A particle is exhibiting simple harmonic motion has its displacement $x$ and velocity $v$ related as $4 v^2=25-x^2$. The time period of SHM is

Three masses $700 \mathrm{~g}, 500 \mathrm{~g}$ and 400 g are suspended at the end of a spring shown in figure and are in equilibrium. When the 700 g mass is removed, the system oscillates with a time period of 3 s . If 500 g mass is furthe...

The dimension of $\frac{E^2}{\mu_0}$ in mass $(M)$, length $(L)$ and time
$(T)$ is $(E=$ electric field,
$\mu_0=$ permeability of free space)

The surface tension of 70 dynes $/ \mathrm{cm}$ is equal to

Which of the following phenomena produces the colour in soap bubble?

A block of mass $m$ placed on a rough horizontal plane is pulled by a constant power $P$. The coefficient of friction between the block and the surface is $\mu$. The maximum velocity of the block will be

The graph of potential energy $U(x)$ versus distance $x$ is shown in the following figure. The force $F$ versus distance $x$ graph will be represented by (assume, that the force is conservative)