Difference Between SEE All Chapters

Difference Between SEE All Chapters

Difference between g and G

S.N Acceleration due to gravity Gravitational Constant
1. It is the acceleration produced on a body due to gravity. It is the force between two unit masses seperated by 1m distance in between their centres.
2. Its unit is m/s2. Its unit is Nm2/kg2.
3. It is a vector. It is a scalar.
4. Its value varies from place to place. It is constant .

Difference Between Mass and Weight

S.N Mass Weight
1. It is the amount of substance contained in a body. It is the force with which a body is attracted towards the center of a planet.
2. Its value is constant everywhere. Its value differs from place to place.
3. It is scalar quantity. It is vector quantity.
4. Its SI unit is Kilogram(kg). Its SI unit is Newton(N).

Difference Between Force and Pressure

S.N Force Pressure
1. It is an external agency that changes or tends to change the position of a body. Force acting per unit area is called pressure.
2. Its SI unit is Newton(N). Its SI unit is Pascal(Pa).
3. It is vector quantity. It is scalar quantity.
4. It is measured by spring balance. It is measured by manometer,barometer and pressure gauge.

Difference Between Heat and Temperature

S.N Heat Temperature
1. It is the sum of total kinetic energy of all the molecules in a body. It is the average kinetic energy of all the molecules in a body.
2. It is cause. It is effect.
3. Its SI unit is Joule(J). Its SI unit is Kelvin(K).
4. Caloriemeter is used to measure it. Thermometer is used to measure it.

Difference Between Convex and Concave Lens

S.N Convex Lens Concave Lens
1. It is thicker at the middle and thinner at the edges. It is thinner at the middle and thicker at the edges.
2. It converges a parallel beam of light after refraction. It diverges a parallel beam of light after refraction.
3. Its focus is real. Its focus is virtual.
4. Virtual image formed by it is always magnified. Virtual image formed by it is always diminished.

Difference Between Real and Virtual Image

S.N Real Image Virtual Image
1. It is always inverted. It is always erected.
2. It usually formed behind the lens. It is always formed on the same side of the object.
3. Its size depends upon the distance between object and optical center. Its size is larger in the convex lens and smaller in concave lens.
4. It can be obtained on screen. It can't be obtained on screen.

Difference Between Long and Short Sightedness

S.N Long Sightedness Short Sightedness
1. It is the inability to see the nearby object but can clearly see distant object distinctly. It is the inability to see the distant object but can clearly see nearby object distinctly.
2. The image of nearby object is formed behind the retina. The image of nearby object is formed infront of the retina.
3. Convex lens is used to correct this defect. Concave lens is used to correct this defect.
4. It occurs due to elongation of eyeball. It occurs due to flattening of eyeball.

Difference Between Filament and Fluorescent lamp

S.N Filament Lamp Fluorescent Lamp
1. It is filled with inert gas like argon. It is filled with mercury vapour.
2. Tungsten filament emits light. Fluorescent powder emits light.
3. Its average life span is short. Its average life span is comparatively high.
4. It converts 10% of electrical energy into light energy. It converts 30% of electrical energy into light energy.

Difference Between DC and AC

S.N Direct Current(DC) Alternate Current(AC)
1. Polarity does not change with respect to time. Polarity changes with respect to time.
2. Transformer cannot alter DC voltage. Transformer can alter AC voltage.
3. It is generated by battery or dynamo. It is generated by A.C. generator.

Difference Between S-Block and P-Block Elements

S.N s-block elements p-block elements
1. The s-block elements have s- subshell as the last orbital. The p-block elements have p- subshell as the last orbital.
2. They can only have 1 or 2 electron in last sub shell. They can only have 1 or 6 electron in last sub shell.
3. Chemical reactivity of elements increases while going downward the group. Chemical reactivity of elements decreases while going downward the group.
4. M.P and B.P decreases while going downward the group. M.P and B.P increases while going downward the group.

Difference Between Acid and Base

S.N Acid Base
1. They gives hydrogen ions(H+) when dissolved in water. They gives hydroxyl ions(OH-) when dissolved in water.
2. Turns blue litmus paper into red. Turns red litmus paper into blue.
3. They are sour in taste. They are bitter in taste.
4. Its pH value is below 7.
Eg. HCl, H2SO4 etc.
Its pH value is above 7.
Eg. NaOH, KOH etc.

Difference Between Alkane and Alkene

S.N Alkane Alkene
1. Carbon atoms are bounded with single covalent bond. Carbon atoms are bounded with double covalent bond.
2. It is represented by a general formula CnH2n+2 . It is represented by a general formula CnH2n .
3. They are less reactive. They are more reactive.
4. Eg. Ethane, Propane etc. Eg. Ethene, Propene etc.

Difference Between Hard Glass and Soft Glass

S.N Soft Glass Hard Glass
1. It is the homogenous mixture of sodium silicate and calcium silicate. It is the homogenous mixture of potassium silicate and calcium silicate.
2. It melts at low temperature. It melts at high temperature.

Difference Between Thermoplastic and Thermosetting Plastic

S.N Thermoplastic Thermosetting plastic
1. It becomes soft on heating. It does notbecome soft on heating.
2. It can be reshaped into desired shapes. It cannot be reshaped and reused.
3. It is soft, elastic and less brittle. It is hard, strong, non elastic and more brittle.
4. Eg: Polyethylene Eg: Bakelite.

Difference Between Soap and Detergent

S.N Soap Detergent
1. It is sodium salts of long chain fatty acids. It is the sodium salts of a long chain benzene sulphonic acid.
2. It has relatively weak cleansing action. It has relatively strong cleansing action.
3. It is prepared from the animal or plant fats. It is prepared from hydrocarbons of petroleum.
4. It is insoluble or less soluble in hard water. It is soluble in hard water.

Difference Between Monocotyledons and Dicotyledons

S.N Monocotyledons Dicotyledons
1. They bear single cotyledon in their seed. They bear two cotyledons in their seed.
2. They have fibrous root system. They have tap root system.
3. Vascular bundles are scattered in the stem. Vascular bundles are arranged in a ring.
4. Eg: Maize, Rice etc. Eg: Pea, Gram etc.

Difference Between Poikilothermic and Homooeothermic

S.N Poikilothermic Homoeothermic
1. They can change their body temperature with respect to surrounding. They can't change their body temperature with respect to surrounding.
2. They are oviparous. They may be oviparous or viviparous.
3. Most of them have gills for respiration. They have lungs for respiration.
4. Their heart is 2/3 chambered. They have four chambered heart.

Difference Between Exocrine and Endocrine Glands

S.N Exocrine Glands Endocrine Glands
1. They are ducted glands. They are ductless glands.
2. They secrete enzymes/juices like mucus, saliva etc. They secrete hormones.
3. Their secretion are related to life processes like digestion,respiration etc. Their secretion are related for control and co-ordination of growth.
4. Eg: Salivary gland,liver etc. Eg : Pituitary gland, thyroid gland etc.

Difference Between Axon and Dendrites

S.N Axon Dendrites
1. They conduct electric impulses or message away from cell body. They conduct electric impulses or message towards cell body.
2. They are not branched. They are highly branched.

Difference Between Mitosis and Meiosis

S.N Mitotis Meiosis
1. It occurs in somatic cells. It occurs in reproductive cells.
2. The number of chromosomes remains same. The number of chromosomes reduce to half.
3. It helps in growth of organism. It helps to form spore and gametes.
4. Prophase
i) There is no synapsis.
ii)There is no crossing over.

Synapsis occur at prophase I.
Crossing over occurs.
5. Metaphase
i) All the centromeres line up in the same plane.
ii)Centromeres of chromosomes remain at the equational plane.

The centromeres are lined up in two metallic planes.
Centromeres of chromosomes are pointed towards pole in metaphase I.
6. Anaphase
i) Centromere divides.

ii) Chromosomes are single stranded.

Centromere does not divide but they seperate from the pair.
Chromosomes are double stranded.
7. Telophase
i) No. of chromosomes remains constant.
ii) Telophase is followed by cytokinesis.

No. of chromosomes is reduced to half.
Telophase may or may not be followed by cytokinesis.

Self Pollination and Cross Pollination

S.N Self Pollination Cross Pollination
1. It is the transfer of pollen grains from anther to stigma of same flower. It is the transfer of pollen grains from anther to stigma of different flower.
2. It occurs without external agents. External agents like air, water, insects are involved in it.
3. It preserves the parental character. It doesn't preserves the parental character.
4. It occurs in closed bisexual flower. It may occur in both unisexual or bisexual flower.

Difference Between RBC and WBC

S.N RBC WBC
1. They are oval, biconcave and non nucleated. They are amoeboid and nucleated.
2. They are red in color due to presence of haemoglobin. They are colourless.
3. They help in respiration. They help in the defence of the body.
4. They are more in number. They are less in number.

Difference Between Auricle and Ventricle

S.N Auricles Ventricles
1. They are upper chambered and thin walled. They are lower chambered and thick walled.
2. They receives blood from different parts of body and passes to ventricles. They receives blood from auricles and passes to different parts of body.
3. Veins are originated from auricles. Arteries are originated from ventricles.

Difference Between Artery and Veins

S.N Artery Veins
1. They carry oxygenated blood except pulmonary artery. They carry de-oxygenated blood except pulmonary vein.
2. Blood pressure is high and fast speed in it. Blood pressure is low and less speed in it.
3. Their walls are thick and more elastic. Their walls are thin and less elastic.
4. They don't have valves. They are provided with valves.

Difference Between Nuclear Fusion and Nuclear Fission

S.N Nuclear Fission Nuclear Fusion
1. It is the breaking down of larger nucleus into lighter nuclei. It is the fusion of lighter nuclei to form a heavier nucleus.
2. It release less energy than nuclear fusion. It release more energy than nuclear fission.
3. It can be controlled. It cannot be controlled.

Difference Between Stars and Planets

S.N Stars Planets
1. Thy produces energy in their core by nuclear reaction. Energy is not produced with any nuclear reaction.
2. They are luminous and numerous. They are non-luminous and are limited in number.
3. They revolve around galactic center. They revolve around stars(sun).