5)Photon of which wavelength eill be visible to naked eye A350 nm B.700 nm C.105

Question

5)Photon of which wavelength eill be visible to naked eye
A350 nm
B.700 nm
C.1050 nm
D.None of these
6)Photon emitted from solution containing lithium ions will
A.have wavelength less than 700 nm
B.have wavelength less than 500 nm
C.have unique wavelength
D.both (b) and (c)
7)Flame test can be performed for
A.only solid samples
B.only solutions
C.only gases
D.both (b) and (c)
8)The energy of photon of wavelength 600 nm is 3.31*10-19J. The energy of photon of wavelength 300 nm will be
A.3.31*10-19J
B.1.65*10-19J
C.6.62*10-19J
D.9.93*10-19J

Explanation / Answer

5)
400 nm to 700 nm falls in visible range
Answer: B

8)
E = h*c/wavelength
E is inversely proportional to wavlength

E1/E2 =lambda2/lambda1
3.31*10^-19 / (E2) = 300/600
E2 = 6.62*10^-19 J
Answer: C

i am allowed to answer only 1 question at a time but i have answered 2

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.