Physics question and answers for August 22, 2024
- Q n The upper half of an incline plane with inclination is perfectly smooth while the lower half is rough A body starting from rest at the top will again come...
- Q 42 0 2 4 0 3 1 6 A smooth block is released at rest on a 45 incline and then slides a distance d The time taken to slide...
- Q PCP 3 x 1 A block of mass m is placed on a surface with a vertical cross section given by y 6 0 5 the maximum height above the...
- Q A block W is held against a vertical wall by applying a horizontal force F The minimum value of F needed to hold the block is if u 1 1...
- Q A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence He observes all possible precautions at each...
- Q 3 Greater than W 4 Data is in insufficient A block of mass m lying on a rough horizontal plane is acted upon by a horizontal force P and another...
- Q In an isobaric process of a monoatomic gas of heat is added to n moles of the gas to increase temperature from T to T The amount of work done...
- Q 1 100 m 2 400 m The minimum force required to start pushing a body up a rough frictional coefficient u inclined plane is F while the minimum force needed...
- Q 56 A composite slab consists of two different materials having equal cross sectional area but lengths in the ratio 2 1 and thermal conductivity K and 3K respectively as shown...
- Q A student used a device X to obtain focus the image of a well illuminated distant building on a screen S as shown below in the diagram Select the correct...
- Q 12 14 The minimum phase difference between two SHMS 1 Y Sinot 2 1 Y Sinot Coswt 3 E FS 7 3 2 12 Coswt 2 4 TC 12 E...
- Q The magnetic circuit of Fig 2 10 has cast steel core The cross sectional area of the central limb is 800 mm and that of each outer limb is 600...
- Q A plank with a box on it at one end is gradually raised about the other end As the angle of inclination with the horizontal reaches 30 the box starts...
- Q A block A of mass m rests on a horizontal table A light string connected to it passes over a frictionles pully at the edge of table and from its...
- Q 12 Three identical particles each of mass m are placed at the corners of an equilateral triangle of side l The work done by external force to increase the sides...
- Q 3 A steel ring of radius r and cross sectional area A is fitted on to a wooden disc of radius R R r It Young s modulus of steel...
- Q D A nonconducting sphere of radius 10 cm is charged uniformly with a density of 100 nC m What is the magnitude of the potential difference between the center and...
- Q An ideal gas heat engine operates in a Carnot cycle between 227 C and 327 C It absorbs 6 kcal at the higher temperature The amount of heat in kcal...
- Q 7 Figure shows a composite wall made of two walls A and B each of equal area and thickness Ratio of thermal conductivity of A and B is 3 2...
- Q 5 gm of ice at 0 C is mixed with 1gm 100 C The final temperature and composition of th mixture is 1 Water at 60 C 2 Water at...
- Q 1 3 2F ELE m 3 Zero F 2m 0000000 m vovovor 4 Which among the following is correct for conservative forces Work done by a conservative force in a...
- Q 2 The drift velocity of the free electrons in a conducting wire carrying a current I is v Consider a wire of the same metal but of double the ra...
- Q Three concentric metallic spherical shells of radii R 2R 3R are given charges Q1 Q2 Q3 respectively It is found that the surface charge den sities on the outer surfaces...
- Q 3 A metallic surface when illuminated with light of wavelength A emits electrons with energies upto a maximum value E and when illuminated with light of wavelength A2 where A...
- Q A man s face is at a distance p 15 cm in front of a concave spherical shaving mirror If the image is erect upright and 1 5 times largen...
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