There are 26 red cards (hearts and diamonds). The number of hearts is 13. Thus, P(Heart | Red) = 13/26 = 1/2.

There are 26 red cards (hearts and diamonds). The number of hearts is 13. Thus, P(Heart | Red) = 13/26 = 1/2.

Increasing the number of slits increases the sharpness of the maxima, thus decreasing the angular width.

Increasing the number of slits increases the intensity of the maxima due to constructive interference.

Increasing the number of slits in a diffraction grating increases the sharpness of the maxima due to constructive interference.

The angle of diffraction is directly proportional to the order of the maximum in a diffraction grating.

Decreasing the slit width increases the diffraction angle, causing the central maximum to become wider.

In a diffraction pattern, the minima are always darker than the maxima, which have higher intensity.

Decreasing the distance between the slits increases the diffraction effect, causing the central maximum to become wider.

Using the condition for the first minimum a sin(30°) = λ, we find the ratio a/λ = 1/√3.

The central maximum has the maximum intensity because all light waves arrive in phase at this point, leading to constructive interference.

The intensity of the central maximum is theoretically infinite compared to the first minimum, which has zero intensity.

The intensity of the central maximum in a diffraction pattern is at its maximum compared to other maxima.

The intensity of the central maximum in a diffraction pattern depends on both the wavelength of light and the slit width.

Fringe separation refers to the distance between two consecutive maxima in a diffraction pattern.

The order of diffraction refers to the number of maxima observed in the diffraction pattern, with the central maximum being the zeroth order.

Increasing the slit width results in a wider central maximum due to the decrease in diffraction effects.

The intensity of the central maximum is typically much greater than that of the first minimum, often approximated as 1:4.

Bit rate refers to the number of bits transmitted per second in a digital communication system.

The probability of being homozygous recessive for both traits (aabb) in a dihybrid cross is 1/16.

The cross AaBb x Aabb results in 1/8 of the offspring being aabb (homozygous recessive for both traits).

The cross AaBb x Aabb results in 1/4 AABB, 1/4 AABb, 1/4 AaBb, and 1/4 Aabb. Only AABB, AABb, and AaBb show the dominant phenotype for both traits, which is 3 out of 8, hence 3/8.

The expected phenotypic ratio in a dihybrid cross is 9:3:3:1.

The depletion region in a diode is the area where no charge carriers are present.

The depletion region is the area in a diode where no current flows under reverse bias.

25% of 200 = 0.25 * 200 = 50 volunteers.

If at least 10 items go to group A, then at most 50 - 10 = 40 items can go to group B.

Since A is taller than B and C is shorter than D, A must be the tallest.

Power (P) of a lens is given by P = 1/f (in meters). Here, f = 15 cm = 0.15 m, so P = 1/0.15 = +6.67 D.

Using the lens maker's formula, f = (R1 * R2) / (n - 1) * (1/R1 - 1/R2), we find f = 12 cm.