List of top Questions asked in AP EAPCET

Two cells with same emf E but different internal resistances, $r_1$ and $r_2$ are connected in series to an external resistance R. If the potential difference across the first cell is zero then the value of R is

In the circuit, the value of the current, $I$ is

Name and arrange the following in the order of technique and steps for separation and isolation of DNA fragments:
[I.] DNA fragments moved towards anode under electric field
[II.] Exposure to UV radiation
[III.] DNA fragments stained with EtBr (Ethidium Bromide)
[IV.] Gel electrophoresis
[V.] Elution
A toy of mass 20 g at rest acquires a velocity $ (3\hat{i} - 2\hat{j}) $ ms$ ^{-1} $ in 2 seconds. Then the power of the toy is
Arrange in sequence the following in mammary gland:
a. Mammary tubule
b. Mammary Ampulla
c. Alveoli
d. Mammary duct
e. Lactiferous duct
A first-order reaction has the rate constant of \(1.15 \times 10^{-3} \, \text{s}^{-1}\). The time required to reduce 10 g of reactant to 6 g is \(x \times 10^2\) sec. What is the approximate value of \(x\)?
The sum of oxygen atoms in the formulae of peroxysulphuric acid and pyrosulphuric acid is

Which of the following exhibits optical isomerism?

The magnitude of the magnetic field due to a circular coil of radius R carrying a current I at its centre is
1.06 g of Na$_2$CO$_3$ (molar mass = 106 g mol$^{-1}$) is dissolved in 500 g water. What is its molality?
Embryos of protostomes are called:
Identify the correct matches:
NerveFunction / Target
A. Vagus nerveiii. Lungs, heart, oesophagus
B. Optic nerve iv. Retina of the eye
C. Hypoglossalii. Muscle of the tongue
D. Facial nervei. Palate, salivary glands
0.5g of non-volatile solute is added to 39g of Benzene. Then vapor pressure of solution is (vapor pressure of pure Benzene is 0.850 torr)
Heterozygous tall plants were crossed with dwarf plants. Then the percentage of dwarf plants produced in the next progeny is:
The energy (in J) released when an excited electron of 5$^{\text{th}}$ orbit of hydrogen atom returns to its ground state is
Identify the correct option
Statement – I: Some insects add glycerol to their blood as antifreezing agent during winter.
Statement – II: Insects are temperature regulators.
Protozoan in which cilia are confined only to juvenile stages is:
Two alkali halide salts, \[ \text{ACl} \] and \[ \text{BCI} \] gave crimson red and violet in their flame test respectively. A and B are respectively
If the osmotic pressure of cane sugar solution is 2.46 atm at 27°C, then what is the concentration (in mol L\(^{-1}\)) of the solution (R = 0.0821 L atm mol\(^{-1}\) K\(^{-1}\))
Which of the following drug is used on diseased skin surface?
Identify the correct statements from the following
I. Brass is an alloy of copper and nickel
II. Bronze is an alloy of copper and zinc
III. German silver is an alloy of copper, zinc and nickel
IV. Brass is an alloy of copper and zinc
An alpha particle of energy \( K \, \text{MeV} \) is moving towards a nucleus of atomic number \( Z \). The distance of closest approach of the alpha particle to the nucleus in meters is
The following is comparable to a professional dinner guest
An inductor is connected to an ac source of frequency 50 Hz. The frequency of the instantaneous power developed in the circuit is
A monatomic gas of volume \( V \) and pressure \( P \) expands isothermally to a volume \( 27V \) and then compressed adiabatically to a volume \( V \). The final pressure of the gas is: