List of top Questions asked in AP POLYCET

The power of a lens is 2:5 D. Its focal length is
If R1 and R2 are the radii of curvature, n is the refractive index and f is the focal length, then the lens maker's formula is given by
A convex lens gives a virtual image when the object is placed on the principal axis
If \(\frac{y}{4}\) and are the object and image distances due to a convex lens respectively, then its focal length is 
When we sit at a camp fire, objects beyond the fire are seen swaying. The principle involved in it is
The symbol ↕ used to draw the ray diagrams indicates
If A and B are the speed of light in a medium and refractive index of that medium respectively, then
A lens bounded by two spherical surfaces curved inwards is
A rectangular tank of depth 2 m is full of water of refractive index \(\frac{4}{3 }\) When viewed from the top, the bottom of the tank is seen at a depth of 
The refractive index of glass with respect to air is 2. The critical angle at their interface is
The device used to measure the specific heat of a substance is
Formation of dew on the surface of a cold soft drink bottle kept in air is due to
Pick the correct match :
AWaterI483
BGlassII4180
CIronIII504
The physical quantity which has no units, is
The heat energy supplied to a system during melting is known as
If i and r are the angles of incidence and refraction respectively, then i <r means the light ray travels from
If the mean of the following data is k(> 0), then the value of k is
MarksK4K83
FrequencyK2K3K4K5K
If the mode of the data 2, 4, 6, 7, 5, 6, 10, 6, 7, 2k + 1, 9, 7, 13 is 7, then the value of k is
Which of the following cannot be determined graphically?
The mean of 12 numbers is 19. If 4 is subtracted from each number, then the new mean is
If a data has 25 observations (arranged in ascending order), then which of the following observations represents the median?
If the ratio of the length of a pole and its shadow is \(1:\sqrt3\), then the angle of elevation of the sun is 
\(\frac{sinθ}{1+cos θ}=\)
Which of the following cannot be the probability of an event?
Two dice are thrown together. The probability of getting the same number on both dice is