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Ask QuestionPosted by Suresh Singh 2 years, 7 months ago
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Posted by Shaivya Parikh 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
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Plant Cell |
Animal Cell |
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Cells comparatively larger in size |
Cells usually small in size |
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Cell wall present |
Cell wall absent |
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Plastids present |
Plastids absent |
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Vacuole are large and generally one |
Vacuales are absent, if present small in size and large in number |
|
Dictyosmoes (Golgi apparatus) are present |
Prominent Golgi apparatus are present |
Kartik Thakur 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
The future is bleak because the reserves of oil would last only 50 years more.
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Aditya Raj 2 years, 7 months ago
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Posted by Harman Kaur 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
AB = 3 cm, AC = 4 cm
In {tex}\triangle{/tex}BAC, by pythagoras theorem
BC2 = AB2 + AC2
{tex}\Rightarrow{/tex}BC2 = 32 + 42
{tex}\Rightarrow{/tex}BC2 = 25
{tex}\Rightarrow{/tex}BC = {tex}\sqrt {25} {/tex} = 5 cm
In {tex}\triangle{/tex}AOB and {tex}\triangle{/tex}CAB
{tex}\angle{/tex}ABO = {tex}\angle{/tex}ABC [common]
{tex}\angle{/tex}AOB = {tex}\angle{/tex}BAC [each 90o]
Then, {tex}\triangle{/tex}AOB - {tex}\triangle{/tex}CAB [by AA similarity]
{tex}\therefore{/tex} {tex}\frac { A O } { C A } = \frac { O B } { A B } = \frac { A B } { C B }{/tex} [c.p.s.t]
{tex}\Rightarrow{/tex} {tex}\frac { A O } { 4 } = \frac { O B } { 3 } = \frac { 3 } { 5 }{/tex}
Then, AO = {tex}\frac{{4 \times 3}}{5}{/tex} and OB = {tex}\frac{{3 \times 3}}{5}{/tex}
{tex}\Rightarrow{/tex} AO = {tex}\frac{12}{5}{/tex} cm and OB = {tex}\frac{9}{5}{/tex} cm
{tex}\therefore{/tex}OC = 5 - {tex}\frac{9}{5}{/tex} = {tex}\frac{16}{5}{/tex}cm
{tex}\therefore{/tex} Volume of double cone thus generated = volume of first cone + volume of second cone
{tex}= \frac { 1 } { 3 } \pi ( A O ) ^ { 2 } \times B O + \frac { 1 } { 3 } \pi ( A O ) ^ { 2 } \times O C{/tex}
{tex}= \frac { 1 } { 3 } \times \frac { 22 } { 7 } \times \left( \frac { 12 } { 5 } \right) ^ { 2 } \times \frac { 9 } { 5 } + \frac { 1 } { 3 } \times \frac { 22 } { 7 } \times \left( \frac { 12 } { 5 } \right) ^ { 2 } \times \frac { 16 } { 5 }{/tex}
{tex}= \frac { 1 } { 3 } \times \frac { 22 } { 7 } \times \frac { 12 } { 5 } \times \frac { 12 } { 5 } \left[ \frac { 9 } { 5 } + \frac { 16 } { 5 } \right]{/tex}
{tex}= \frac { 1 } { 3 } \times \frac { 22 } { 7 } \times \frac { 12 } { 5 } \times \frac { 12 } { 5 } \times 5{/tex}
={tex}\frac{1056}{35}{/tex} = {tex}30 \frac { 6 } { 35 } \mathrm { cm } ^ { 3 }{/tex}.
Posted by Account Deleted 2 years, 7 months ago
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Posted by Keshav Chadha 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
It is true that Lencho seemed to be an impulsive man. He suddenly felt elated and quickly became sad. However, he did not lack courage and tolerance. He had firm belief in god. He faced the situation courageously and wrote a letter to god for help. He also showed lot of tolerance as he kept on waiting for the reply. He was sure that things would be fine once he would receive a reply from god. Just like Lencho, one should have courage and belief to face any situation in life. One should also be tolerant and hopeful to wait for good times.
H Harshita 2 years, 7 months ago
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Posted by Keshav Chadha 2 years, 7 months ago
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H Harshita 2 years, 7 months ago
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Posted by Devansh Singhal 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
energy consumed by heater of 1000W for 2h in one day=1000/1000×2 =2units number of units=W×h×day/1000 energy consumed by heater in 28 day 2×28=56units cost of 1unit =RS 3 cost of 56unit=3×56=RS 168
Yash Yash Patel 2 years, 7 months ago
Posted by Mayank Roy 2 years, 7 months ago
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Preeti Dabral 2 years, 7 months ago
Denmark. The Danish selective social welfare is largely the responsibility of local, rather than national government. The National Assistance Act (1961) "gives local governments the power to help people whose resources are insufficient to take of their basic needs." Costs for selective programs are the responsibility of the local governments, with financial aid from the national government, amounting to about 30% of expenditures.
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Preeti Dabral 2 years, 7 months ago
Plasma membrane is the selectively permeable membrane that surrounds the cell and allows the entry and exit of selected materials of the cell. If it ruptures, the contents of the cell will come in direct contact with the surrounding medium and not only unwanted material will be able to enter freely into the cell, but useful material will also find its way out of the cell easily. This will seriously disrupt the various metabolic activities of the cell and will result in its eminent death.
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Suresh Singh 2 years, 7 months ago
1Thank You