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Browse complete papersIn which of the present districts of Andhra Pradesh, the Guntupalli Buddhist monuments are located?
Eluru district
Anakapalli district
East Godavari district
NTR district
Correct answer
Eluru district
An object is dropped freely from a height of 125 m. The time taken by the object to reach the ground is
(Take acceleration due to gravity = 10 ms-2)
2 s
5 s
10 s
20 s
Correct answer
2 s
The time taken by sound wave to travel a distance of 1050 m in air is (Speed of sound in air is 350 ms-1)
6 s
3 s
2 s
1 s
Correct answer
6 s
If 'v' is the linear speed of a particle moving in a circular path of radius 'R', then the angular speed of the particle is
\(\rm \frac{v}{R^2}\)
vR2
\(\rm \frac{v}{R}\)
vR
Correct answer
\(\rm \frac{v}{R^2}\)
A man walks 10 m horizontally by holding a box of mass 10 kg on his head. Work done by gravitational force on the box in joule is
(Acceleration due to gravity = 10 ms-2)
100
1000
10
0
Correct answer
100
If the speed of light in a medium is 1.25 × 108 ms-1 and the speed of light in air is 3 × 108 ms-1, then the refractive index of the medium is
2.4
2.9
1.4
3.6
Correct answer
2.4
Current through 5 resistor in the given circuit is
0 A
4 A
\(\frac{4}{3}\) A
\(\frac{3}{4}\) A
Correct answer
0 A
Heat is supplied to two substances A and B of same mass at the same constant rate. If the ratio of the specific heat capacities of the substances A and B is 1 ∶ 2, then the ratio of the rates at which the temperatures of the substances A and B rise is
1 ∶ 2
2 ∶ 1
1 ∶ 1
1 ∶ 4
Correct answer
1 ∶ 2
A solution of X is used for white washing walls. X on reaction with CO2 of air slowly and forms a thin layer of compound Y on the walls. What are X and Y?
CaO, Ca(OH)2
CaCO3, Ca(OH)2
Ca(OH)2, CaCO3.
CaCO3, CaCO3
Correct answer
CaO, Ca(OH)2
Identify the correct statements from the following.
I) The gaseous products formed in chlor-alkali process are Cl2, H2.
II) At 25°C pH of a neutral solution is more than 7.
III) Graphite is an allotrope of sulphur.
IV) Potassium metal can be cut with a knife.
I, IV only
II, IV only
III, IV only
II, III only
Correct answer
I, IV only