282272 Assertion: Critical angle is minimum for violet colour.
Reason: Because critical angle \(\theta_c=\sin ^{-1}\left(\frac{1}{\mu}\right)\) and \(\theta \propto \frac{1}{\lambda}\).

282273 Assertion: In optical fibre, the diameter of the core is kept small.
Reason : This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

282274 Assertion: The refractive index of diamond is \(\sqrt{6}\) and that of liquid is \(\sqrt{3}\). If the light travels from diamond on the liquid, it will totally reflected when the angle of incidence is \(30^{\circ}\).
Reason: \(\mu=\frac{1}{\sin C}\), where \(\mu\) is the refractive index of diamond with respect to liquid.

282275 Assertion: The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be \(\sqrt{2}\).
Reason: Here, critical angles \(45^{\circ}\)

282276 Assertion: The colour of the green flower seen through red glass appears to be dark.
Reason : Red glass transmits only red light.

282272 Assertion: Critical angle is minimum for violet colour.
Reason: Because critical angle \(\theta_c=\sin ^{-1}\left(\frac{1}{\mu}\right)\) and \(\theta \propto \frac{1}{\lambda}\).

282273 Assertion: In optical fibre, the diameter of the core is kept small.
Reason : This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

282274 Assertion: The refractive index of diamond is \(\sqrt{6}\) and that of liquid is \(\sqrt{3}\). If the light travels from diamond on the liquid, it will totally reflected when the angle of incidence is \(30^{\circ}\).
Reason: \(\mu=\frac{1}{\sin C}\), where \(\mu\) is the refractive index of diamond with respect to liquid.

282275 Assertion: The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be \(\sqrt{2}\).
Reason: Here, critical angles \(45^{\circ}\)

282276 Assertion: The colour of the green flower seen through red glass appears to be dark.
Reason : Red glass transmits only red light.

282272 Assertion: Critical angle is minimum for violet colour.
Reason: Because critical angle \(\theta_c=\sin ^{-1}\left(\frac{1}{\mu}\right)\) and \(\theta \propto \frac{1}{\lambda}\).

282273 Assertion: In optical fibre, the diameter of the core is kept small.
Reason : This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

282274 Assertion: The refractive index of diamond is \(\sqrt{6}\) and that of liquid is \(\sqrt{3}\). If the light travels from diamond on the liquid, it will totally reflected when the angle of incidence is \(30^{\circ}\).
Reason: \(\mu=\frac{1}{\sin C}\), where \(\mu\) is the refractive index of diamond with respect to liquid.

282275 Assertion: The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be \(\sqrt{2}\).
Reason: Here, critical angles \(45^{\circ}\)

282276 Assertion: The colour of the green flower seen through red glass appears to be dark.
Reason : Red glass transmits only red light.

282272 Assertion: Critical angle is minimum for violet colour.
Reason: Because critical angle \(\theta_c=\sin ^{-1}\left(\frac{1}{\mu}\right)\) and \(\theta \propto \frac{1}{\lambda}\).

282273 Assertion: In optical fibre, the diameter of the core is kept small.
Reason : This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

282274 Assertion: The refractive index of diamond is \(\sqrt{6}\) and that of liquid is \(\sqrt{3}\). If the light travels from diamond on the liquid, it will totally reflected when the angle of incidence is \(30^{\circ}\).
Reason: \(\mu=\frac{1}{\sin C}\), where \(\mu\) is the refractive index of diamond with respect to liquid.

282275 Assertion: The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be \(\sqrt{2}\).
Reason: Here, critical angles \(45^{\circ}\)

282276 Assertion: The colour of the green flower seen through red glass appears to be dark.
Reason : Red glass transmits only red light.

282272 Assertion: Critical angle is minimum for violet colour.
Reason: Because critical angle \(\theta_c=\sin ^{-1}\left(\frac{1}{\mu}\right)\) and \(\theta \propto \frac{1}{\lambda}\).

282273 Assertion: In optical fibre, the diameter of the core is kept small.
Reason : This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

282274 Assertion: The refractive index of diamond is \(\sqrt{6}\) and that of liquid is \(\sqrt{3}\). If the light travels from diamond on the liquid, it will totally reflected when the angle of incidence is \(30^{\circ}\).
Reason: \(\mu=\frac{1}{\sin C}\), where \(\mu\) is the refractive index of diamond with respect to liquid.

282275 Assertion: The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be \(\sqrt{2}\).
Reason: Here, critical angles \(45^{\circ}\)

282276 Assertion: The colour of the green flower seen through red glass appears to be dark.
Reason : Red glass transmits only red light.