LOGIN

Connected via
Yellow & Red Accounts

Can't access your account ?
REGISTER
By Registering with us you agree to our Terms and conditions, Privacy Policy. Also you assure that you have read our Data and Cookie usage policies.

Total no of Jobs

34267

Total no of Papers

136

User Reviews

Perfect Forum

Anamika Jai

Ease of use

Shobha

Open Library

Nayana

Warning!

If you are not receiving or if every expected emails sent from TestVeda go missing in your email account, it's best to do the below actions without fail.

1.. Search all emails in your email account.

2.. Check Spam, Trash some email service providers spams new emails from third party services like us.

3.. Please report 'NOT A SPAM' to emails sent from TestVeda, so that you will never miss our future emails.


Cheers
TestVeda Team.

Share on:

1. The speed of light in media M1 and M2 are 1.5 x 108 ms-1 and 2 x 108 ms-1 respectively. A ray travels from medium M1 to the medium M2 with an angle of incidence θ. The ray suffers total internal reflection. Then the value of the angle of incidence θ is.
A > sin-1 (3/4)
B < sin-1 (3/4​)
C = sin-1 (3/4​)
D ≤ sin-1 (3/4​)
2. Which of the following phenomena support the wave theory of light?
a) scattering
b) interference
c) diffraction
d) velocity of light in a denser medium is less than the velocity of light in the rarer medium.
A a, b, c
B a, b, d
C b, c, d
D a, c, d
3. White light reflected from a soap film (Refractive Index = 1.5) has a maxima at 600 nm and a minima at 450 nm with no minimum in between. Then the thickness of the film is ________ x 10-7 m
A 1
B 2
C 3
D 4
4. A cylindrical tube of length 0.2 m and radius R with sugar solution of concentration “C” produce a rotation of 0 in the plane of vibration of a plane polarized light. The same sugar solution is transferred to another tube of length 0.3 m of same radius. The remaining gap is filled by distilled water. Now the optical rotation produced is.
A θ
B θ/3
C θ/2
D 9  θ/4
5. Radii of curvature of a converging lens are in the ratio 1 : 2. Its focal length is 6 cm and refractive index is 1.5. Then its radii of curvature are ____ respectively.
A 9 cm and 18 cm
B 6 cm and 12 cm
C 3 cm and 6 cm
D 4.5 cm and 9 cm

Login to view more details and Registration is free