Physics-
General
Easy
Question
Example for bioluminescent body
- Sun
- Candle
- Glowworm
- All the above
The correct answer is: Glowworm
Related Questions to study
physics-
In a smooth stationary cart of length d, a small block is projected along it's length with velocity v towards front. Coefficient of restitution for each collision is e. The cart rests on a smooth ground and can move freely. The time taken by block to come to rest w.r.t. cart is
In a smooth stationary cart of length d, a small block is projected along it's length with velocity v towards front. Coefficient of restitution for each collision is e. The cart rests on a smooth ground and can move freely. The time taken by block to come to rest w.r.t. cart is
physics-General
physics-
In the diagram shown, no friction at any contact surface. Initially, the spring has no deformation. What will be the maximum deformation in the spring? Consider all the strings to be sufficiency large. Consider the spring constant to be K.
In the diagram shown, no friction at any contact surface. Initially, the spring has no deformation. What will be the maximum deformation in the spring? Consider all the strings to be sufficiency large. Consider the spring constant to be K.
physics-General
physics-
Centre of mass of two thin uniform rods of same length but made up of different materials & kept as shown , can be, if the meeting point is the origin of co-ordinates
Centre of mass of two thin uniform rods of same length but made up of different materials & kept as shown , can be, if the meeting point is the origin of co-ordinates
physics-General
physics-
In the figure (i), (ii) & (iii) shown the objects A, B & C are of same mass. String, spring & pulley are massless. C strikes B with velocity ‘u’ in each case and sticks to it. The ratio of velocity of B in case (i) to (ii) to (iii) is
i) 
ii) 
iii) 
In the figure (i), (ii) & (iii) shown the objects A, B & C are of same mass. String, spring & pulley are massless. C strikes B with velocity ‘u’ in each case and sticks to it. The ratio of velocity of B in case (i) to (ii) to (iii) is
i)
ii)
iii)
physics-General
physics-
In the figure shown, the two identical balls of mass M and radius R each, are placed in contact with each other on the frictionless horizontal surface. The third ball of mass M and radius R/2, is coming down vertically and has a velocity = v0 when it simultaneously hits the two balls and itself comes to rest. Then, each of the two bigger balls will move after collision with a speed equal to
In the figure shown, the two identical balls of mass M and radius R each, are placed in contact with each other on the frictionless horizontal surface. The third ball of mass M and radius R/2, is coming down vertically and has a velocity = v0 when it simultaneously hits the two balls and itself comes to rest. Then, each of the two bigger balls will move after collision with a speed equal to
physics-General
physics-
In the figure shown a hole of radius 2 cm is made in a semicircular disc of radius 6p at a distance 8 cm from the centre C of the disc. The distance of the centre of mass of this system from point C is :
In the figure shown a hole of radius 2 cm is made in a semicircular disc of radius 6p at a distance 8 cm from the centre C of the disc. The distance of the centre of mass of this system from point C is :
physics-General
physics-
A uniform chain of length 2L is hanging in equilibrium position, if end B is given a slightly downward displacement the imbalance causes an acceleration. Here pulley is small and smooth & string is inextensible
The velocity v of the string when it slips out of the pulley (height of pulley from floor 
2L)
A uniform chain of length 2L is hanging in equilibrium position, if end B is given a slightly downward displacement the imbalance causes an acceleration. Here pulley is small and smooth & string is inextensible
The velocity v of the string when it slips out of the pulley (height of pulley from floor 2L)
physics-General
physics-
A uniform chain of length 2L is hanging in equilibrium position, if end B is given a slightly downward displacement the imbalance causes an acceleration. Here pulley is small and smooth & string is inextensible
The acceleration of end B when it has been displaced by distance x, is
A uniform chain of length 2L is hanging in equilibrium position, if end B is given a slightly downward displacement the imbalance causes an acceleration. Here pulley is small and smooth & string is inextensible
The acceleration of end B when it has been displaced by distance x, is
physics-General
physics-
If the geometric length of a bar magnet is 60cm, then the magnetic length is ......................cm
If the geometric length of a bar magnet is 60cm, then the magnetic length is ......................cm
physics-General
physics-
A magnetic substance can be made into magnet by ..................................
A magnetic substance can be made into magnet by ..................................
physics-General
physics-
A charge of 8800 C flows through an electric circuit in 2 min and 40 sec Calculate the magnitude of current in circuit.
A charge of 8800 C flows through an electric circuit in 2 min and 40 sec Calculate the magnitude of current in circuit.
physics-General
physics-
The symbol of cell is ................
The symbol of cell is ................
physics-General
physics-
The source of electric current for hand held transistor is ..................
The source of electric current for hand held transistor is ..................
physics-General
physics-
The effective emf of the combination is .............. v
The effective emf of the combination is .............. v
physics-General
physics-
The total emf is ......................
The total emf is ......................
physics-General
