Biology; Chemistry; Physics: Post your doubts here!

[Abdul Hanan]

Answer of pressure vs depth graph in MCQ's???

B i think it was constant increase and started above origin

 

[Abdul Hanan]

In the red and blue light one what did we had to write??
MCQ about thermometer sensitivity

sensitivity one was B

 

[Awesome12]

The answer to one of them was loudspeaker,and the resistance of codes was 200 and the block had friction exerting equal force to the right...right?

To the left. The force was being exerted to the right Friction force is opposite to that force

 

[Abdul Hanan]

166N wasn't the total force. It was the force exerted due to the pressure of 33.3 Pa in the liquid.

bro you got that 33.3 wrong you did not change cm into meter

 

[asadalam]

To the left. The force was being exerted to the right Friction force is opposite to that force

oops yeah sorry,i meant to the left

 

[Lilly2318]

166N wasn't the total force. It was the force exerted due to the pressure of 33.3 Pa in the liquid.

didnt u convert cm to m?. it was 3333.3 smthing

 

[DaniyalK]

bro you got that 33.3 wrong you did not change cm into meter

Sorry, it was 33N/cm^2.

 

[asadalam]

bro you got that 33.3 wrong you did not change cm into meter

It was already in meters no?1.5 m*3?

 

[Abdul Hanan]

didnt u convert cm to m?. it was 3333.3 smthing

333333.33333 yea
it was not cm to m
it was cm^2 to m^2

 

[Lilly2318]

W

333333.33333 yea

WHAT?

 

[Mazin Junaid]

W

WHAT?

You needed to divide 1.5 by 100² to convert it to m²

 

[Lilly2318]

200

Oh yeah - what was the colour code answer?

Because if you read it from left to right it was 200.
If you read it right to left it was 1000.

And both were options :/

 

[Abdul Hanan]

W

WHAT?

yes cm^2 to m^2

 

[Lilly2318]

You needed to divide 1.5 by 100² to convert it to m²

i only dvided by 100

 

[Ram97]

red and blue light why are they separated

 

[Lilly2318]

yes cm^2 to m^2

mine was only 333.3 smthing

 

[Abdul Hanan]

i only dvided by 100

devide by 10000

 

[Ram97]

Last mcq about least mass

 

[Lilly2318]

red and blue light why are they separated

i guess dif wavlngth . greater the angle of inci, greater refractive index

 

[Lilly2318]

devide by 10000

how much will lose , for second part will i b given e.c.f