I got 307, but stated that the block may not have been at 100c when placed in the water or energy transferred to the environment, therefore it is most likely greater (so copper)

Reply 49

econminho

5

What did people get for the focal lengths? And did people say the wave will be detected as the frequency was greater than threshold for IR question? and for the blue and red light did you mention how its violet light, monochhromatic , coherent, superposition and interference etc.

0.818 and 0.082

Original post by AceRox

How tho, cos shouldnt you set 14 = received wavelength - lambda/lambda. Then solve for lambda to get 2.67

Idk man

Original post by lucas_b

I got 307, but stated that the block may not have been at 100c when placed in the water or energy transferred to the environment, therefore it is most likely greater (so copper)

I got 308 so I assume I still will be fine with that. I got liek 307. something to get that. I dont think you would require that explanation would you? I just said therefore copper.

Reply 52

lucas_b

8

1-10) MCQ
11)
12) Thermodynamics with metal block
14)
15)
16)
17) Lenses + Gravity

Help me fill it in

Reply 53

enrdegttve23

4

That paper was blessed omg

Reply 54

TmG84

5

Original post by econminho

What did people get for the focal lengths? And did people say the wave will be detected as the frequency was greater than threshold for IR question? and for the blue and red light did you mention how its violet light, monochhromatic , coherent, superposition and interference etc.

For the 6 marker… I said that red light would produce maxima which is further apart as it has a longer wavelength. Said the same for blue light. And how since the light isn’t monochromatic there will be interference? Something like that

Reply 55

lucas_b

8

Original post by enrdegttve23

That paper was blessed omg

It was cursed

Reply 56

Ahnaf Khan

Original post by lucas_b

It was cursed

literally.

Reply 57

Griff Dog

10

Original post by AceRox

How tho, cos shouldnt you set 14 = received wavelength - lambda/lambda. Then solve for lambda to get 2.67

I got 2.67!!!

Reply 58

econminho

5

Original post by lucas_b

1-10) MCQ
11) Question on standing wave/guitar string
12) Thermodynamics with metal block
14)
15)
16)
17) BLue and red light question
18) Lenses + Gravity

Help me fill it in

Original post by TmG84

For the 6 marker… I said that red light would produce maxima which is further apart as it has a longer wavelength. Said the same for blue light. And how since the light isn’t monochromatic there will be interference? Something like that