Question

plz...help me to answer...​

Answer 1

Answer:

• First case: λ=800pm=800×10-12=8×10-10m.
• c=3.0×108ms-1,h=6.626×10-34Js.
• second case: λ=400pm=400×10-12=4×10-10m.
• c=3.0×108ms-1,h=6.626×10-34Js.

Answer 2

Answer:

E

1

=hc/λ

1

,E

2

=hc/λ

2

E

2

E

1

=

λ

1

hc

×

hc

λ

2

E

2

E

1

=

λ

1

λ

2

=

800

400

2E

1

=E

2

Have a nice day