(i) With the one day internationals becoming popular in television, coloured dresses, protective helmets, field restrictions, cricket under lights became very common. (ii) Now cricket has become a marketable game and it earns a huge revenue through advertising and showing of matches. (iii) Cricket bRead more
(i) With the one day internationals becoming popular in television, coloured dresses, protective helmets, field restrictions, cricket under lights became very common.
(ii) Now cricket has become a marketable game and it earns a huge revenue through advertising and showing of matches.
(iii) Cricket boards become rich by selling television rights to television companies.
(iv) A lot of companies give advertisements in between the matches to earn revenue.
(v) Continuous television coverage made cricketers celebrities, who, besides being paid better by cricket boards, made larger sum of money by doing commercials for soft drinks, tyres, etc. on television.
(i) This game teacher us the code of human and leadership help them play the game. (ii) It also teachers us the feeling of nationalism. Whatever religion or region you belong to to but while playing, you are playing for the century. (ii) Players learn to be disciplined as they follow the game rulesRead more
(i) This game teacher us the code of human and leadership help them play the game.
(ii) It also teachers us the feeling of nationalism. Whatever religion or region you belong to to but while playing, you are playing for the century.
(ii) Players learn to be disciplined as they follow the game rules very judiciously and hence disagree with the umpires.
Insert a circular loop of copper wire through two holes drilled in a cardboard sheet. Connect the ends X and Y of loop with a battery, key, rheostat and ammeter as shown in adjoining figure. Sprinkle some iron filings on cardboard sheet. when a current is passed through the loop, the iron filings arRead more
Insert a circular loop of copper wire through two holes drilled in a cardboard sheet. Connect the ends X and Y of loop with a battery, key, rheostat and ammeter as shown in adjoining figure. Sprinkle some iron filings on cardboard sheet. when a current is passed through the loop, the iron filings arrange themselves in a definite pattern, which gives the magnetic field pattern. The direction of field at the centre point can be obtained by placing a small compass needle there. The rule which helps to determine the direction of magnetic field is the ‘right hand thumb rule’. As per this rule let us consider our right hand with thumb stretched perpendicular to wrapped fingers. If now wrapped fingers give the direction of current flow in the loop then thumb will point in the direction of magnetic field. A galvanometer, an electric motor, an electric bell, an electric fan etc., are common devices that use current carrying conductors and magnetic fields.
(a) Organ where growth hormone is synthesised in: (i) Man - Pituitary gland. (ii) Plants - Apical meristem like shoot tip and root tip. (b) (i) When a plant is exposed to unidirectional light, the auxin present at the shoot tip detect the stimulus. (ii) The auxin diffuses to shady side of the shoot.Read more
(a) Organ where growth hormone is synthesised in:
(i) Man – Pituitary gland.
(ii) Plants – Apical meristem like shoot tip and root tip.
(b) (i) When a plant is exposed to unidirectional light, the auxin present at the shoot tip detect the stimulus.
(ii) The auxin diffuses to shady side of the shoot.
(iii) This brings about growth of cells on the shady side. Thus this side grows more than the illuminated side.
(iv) This brings about bending of shoot towards the source of light.
The hormone that brings about such growth is Auxin.
The type of movement is Tropic Movement i.e., Phototropic movement.
The specified length of the cricket pitch is
(b) 22 yards
(b) 22 yards
See lesswhat role did the television play in revolutionising the game of cricket?
(i) With the one day internationals becoming popular in television, coloured dresses, protective helmets, field restrictions, cricket under lights became very common. (ii) Now cricket has become a marketable game and it earns a huge revenue through advertising and showing of matches. (iii) Cricket bRead more
(i) With the one day internationals becoming popular in television, coloured dresses, protective helmets, field restrictions, cricket under lights became very common.
See less(ii) Now cricket has become a marketable game and it earns a huge revenue through advertising and showing of matches.
(iii) Cricket boards become rich by selling television rights to television companies.
(iv) A lot of companies give advertisements in between the matches to earn revenue.
(v) Continuous television coverage made cricketers celebrities, who, besides being paid better by cricket boards, made larger sum of money by doing commercials for soft drinks, tyres, etc. on television.
How were values drawn from games like cricket?
(i) This game teacher us the code of human and leadership help them play the game. (ii) It also teachers us the feeling of nationalism. Whatever religion or region you belong to to but while playing, you are playing for the century. (ii) Players learn to be disciplined as they follow the game rulesRead more
(i) This game teacher us the code of human and leadership help them play the game.
See less(ii) It also teachers us the feeling of nationalism. Whatever religion or region you belong to to but while playing, you are playing for the century.
(ii) Players learn to be disciplined as they follow the game rules very judiciously and hence disagree with the umpires.
on adding an aluminum strip to zinc sulphate solution, the observations made are:
(a) 2A1 + 3ZnSO₄ ⟶ A1₂(SO₄)₃ + 3Zₙ There is no change in the colour of the solution but a new coating of Zn on Al is formed.
(a) 2A1 + 3ZnSO₄ ⟶ A1₂(SO₄)₃ + 3Zₙ
See lessThere is no change in the colour of the solution but a new coating of Zn on Al is formed.
Fe (s) + CuSO₄ (aq) ⟶ + FeSO₄ (aq) + Cu (s) The above mentioned chemical equation shows a:
(a) Fe is more reactive than Cu' It displaces Cu from CuSO₄
(a) Fe is more reactive than Cu’ It displaces Cu from CuSO₄
See lessWhen dilute hydrochloric acid is added to granulated zinc placed in a test tube’ the observation made is:
(d) Zinc reacts with dil. Hydrochloric acid to evolve a colourless and odourless gas which appears as bubbles
(d) Zinc reacts with dil. Hydrochloric acid to evolve a colourless and odourless gas
See lesswhich appears as bubbles
No reaction is noticed when dilute hydrochloric acid is added to:
(c) Dilute hydrochloric acid does not react with sodium chloride solution.
(c) Dilute hydrochloric acid does not react with sodium chloride solution.
See lessTo study the reaction between HCI and zinc, a student has to:
(d) Zinc granules react with dil. HC1 at room temperature.
(d) Zinc granules react with dil. HC1 at room temperature.
See lessThe flow of current in a circular loop of wire creates a magnetic field at its centre. How can the existence of this field be detected? Slate the rule which helps to determine the direction of this magnetic field. Name four common devices that use current carrying conductors and magnetic fields.
Insert a circular loop of copper wire through two holes drilled in a cardboard sheet. Connect the ends X and Y of loop with a battery, key, rheostat and ammeter as shown in adjoining figure. Sprinkle some iron filings on cardboard sheet. when a current is passed through the loop, the iron filings arRead more
Insert a circular loop of copper wire through two holes drilled in a cardboard sheet. Connect the ends X and Y of loop with a battery, key, rheostat and ammeter as shown in adjoining figure. Sprinkle some iron filings on cardboard sheet. when a current is passed through the loop, the iron filings arrange themselves in a definite pattern, which gives the magnetic field pattern. The direction of field at the centre point can be obtained by placing a small compass needle there. The rule which helps to determine the direction of magnetic field is the ‘right hand thumb rule’. As per this rule let us consider our right hand with thumb stretched perpendicular to wrapped fingers. If now wrapped fingers give the direction of current flow in the loop then thumb will point in the direction of magnetic field. A galvanometer, an electric motor, an electric bell, an electric fan etc., are common devices that use current carrying conductors and magnetic fields.
See less(a) Name one organ each where growth hormone is synthesised in man and plant. (b) List the sequence of events that occur when a plant is exposed to unidirectional light, leading to bending of a growing shoot, Also name the hormone and the type of movement.
(a) Organ where growth hormone is synthesised in: (i) Man - Pituitary gland. (ii) Plants - Apical meristem like shoot tip and root tip. (b) (i) When a plant is exposed to unidirectional light, the auxin present at the shoot tip detect the stimulus. (ii) The auxin diffuses to shady side of the shoot.Read more
(a) Organ where growth hormone is synthesised in:
See less(i) Man – Pituitary gland.
(ii) Plants – Apical meristem like shoot tip and root tip.
(b) (i) When a plant is exposed to unidirectional light, the auxin present at the shoot tip detect the stimulus.
(ii) The auxin diffuses to shady side of the shoot.
(iii) This brings about growth of cells on the shady side. Thus this side grows more than the illuminated side.
(iv) This brings about bending of shoot towards the source of light.
The hormone that brings about such growth is Auxin.
The type of movement is Tropic Movement i.e., Phototropic movement.