List of top Questions asked in AP EAMCET

Assertion (A): Rhodospirillum is not a photoheterotroph bacteria. 
Reason (R): Photoheterotrophs obtain energy from light but carbon from organic sources.

Identify the sequential life stages of Plasmodium in mosquito
A. Sporozoites  
B. Zygote  
C. Oocyst  
D. Sporocyst  
E. Sporoblast  

Assertion (A): Neurohypophysis of the pituitary gland releases a hormone, which is helpful for child birth.
Reason (R): Neurohypophysis releases relaxin, which contracts the uterine muscles during child birth.
Reticulopodia are found in:

Match the following:

Assertion (A): DNA fragments are positively charged.
Reason (R): DNA fragments are separated by gel electrophoresis technique.
In case of diffraction, if \( a \) is a slit width and \( \lambda \) is the wavelength of the incident light, then the required condition for diffraction to take place is:

The number of \(\sigma\) bonds, \(\pi\)-bonds, and lone pairs of electrons present in the product Z in the given reaction sequence are respectively: 

A block of mass \(m\) is placed in equilibrium on a moving horizontal plank. The maximum horizontal acceleration of the plank for \(\mu = 0.2\) is (Acceleration due to gravity = \(10 \, {ms}^{-2}\)).
At \(T\)K, for one mole of an ideal gas, \(P\), \(V\) and \({v}_{rms}\) were measured. A graph of \(({v}_{rms})^2\) (on y-axis) and \(PV\) (on x-axis) goes straight line passing through origin. Its slope is \(m\). What is its molar mass (in kg mol\(^{-1}\))?

In the following diagram, the work done in moving a point charge from point P to point A, B and C are \( W_A, W_B, W_C \) respectively. Then (A, B, C are points on semicircle and point charge \( q \) is at the centre of semicircle)
 

Styrene on reaction with reagent X gave Y, which on hydrolysis followed by oxidation gave Z. Z gives positive 2,4-DNP test but does not give iodoform test. What are X and Z respectively?

Match the following 

The ground state energy of hydrogen atom is -13.6 eV. The potential energy of the electron in this state is:
Assertion (A): Bacillo viruses attack insects and arthropods
Reason (R): They have no negative impact on non-target insects
During blood clotting, in extrinsic pathway, thromboplastin activates:
Identify the wrong matching

Two bar magnets A and B are identical and arranged as shown. Their lengths are negligible compared to the separation between them. A magnetic needle placed between the magnets at point P gets deflected through an angle \( \theta \) under their influence. The ratio of distances \( d_1 \) and \( d_2 \) is: 


 

Two cylindrical vessels A and B of different areas of cross-section kept on the same horizontal plane are filled with water to the same height. If the volume of water in vessel A is 3 times the volume of water in vessel B, then the ratio of the pressures at the bottom of the vessels A and B is:

Match the following

Match the following:

Assertion (A): PCR is used to detect HIV. 
Reason (R): It is based on the principle of antigen-antibody interaction. 
 

The average power generated by a 90 kg mountain climber who climbs a summit of height 600 m in 90 minutes is (Acceleration due to gravity \( g = 10 \) m/s\(^2\)):
A non-volatile solute is dissolved in water. The \(\Delta T_f\) of the resultant solution is 0.052 K. What is the freezing point of the solution (in K)?
(Given: \( K_b \) of water = 0.52 K kg mol\(^{-1}\), \( K_f \) of water = 1.86 K kg mol\(^{-1}\), Freezing point of water = 273 K)
In F2 progeny of dihybrid cross in pea plant the ratio of genotypes YyRR, yyRR, YyRR, Yyrr is